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Finding the Fourth Proportional to 545.10, 751.98 and 346.19

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Solution

The fourth proportional to 545.10, 751.98 and 346.19 is: 477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.10 : 751.98 = 346.19 : x
  2. Step 2: Convert to fraction form
    545.10/751.98 = 346.19/x
  3. Step 3: Cross multiply
    545.10x = 751.98 × 346.19
  4. Step 4: Simplify right side
    545.10x = 260,329.72
  5. Step 5: Solve for x
    x = 260,329.72/545.10
  6. Step 6: Final answer
    x = 477.58

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Double scale
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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.