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Finding the Fourth Proportional to 545.09, 752.22 and 324.27

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Solution

The fourth proportional to 545.09, 752.22 and 324.27 is: 447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.09 : 752.22 = 324.27 : x
  2. Step 2: Convert to fraction form
    545.09/752.22 = 324.27/x
  3. Step 3: Cross multiply
    545.09x = 752.22 × 324.27
  4. Step 4: Simplify right side
    545.09x = 243,922.38
  5. Step 5: Solve for x
    x = 243,922.38/545.09
  6. Step 6: Final answer
    x = 447.49

Related Problems

Find fourth proportional to 272.54, 376.11 and 162.14
Half scale
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Double scale
Find fourth proportional to 546.09, 753.60 and 325.27
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.