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Finding the Fourth Proportional to 545.99, 753.53 and 324.94

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Solution

The fourth proportional to 545.99, 753.53 and 324.94 is: 448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.99 : 753.53 = 324.94 : x
  2. Step 2: Convert to fraction form
    545.99/753.53 = 324.94/x
  3. Step 3: Cross multiply
    545.99x = 753.53 × 324.94
  4. Step 4: Simplify right side
    545.99x = 244,849.47
  5. Step 5: Solve for x
    x = 244,849.47/545.99
  6. Step 6: Final answer
    x = 448.45

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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.