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Finding the Fourth Proportional to 545.72, 752.36 and 370.76

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Solution

The fourth proportional to 545.72, 752.36 and 370.76 is: 511.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.72 : 752.36 = 370.76 : x
  2. Step 2: Convert to fraction form
    545.72/752.36 = 370.76/x
  3. Step 3: Cross multiply
    545.72x = 752.36 × 370.76
  4. Step 4: Simplify right side
    545.72x = 278,939.38
  5. Step 5: Solve for x
    x = 278,939.38/545.72
  6. Step 6: Final answer
    x = 511.14

Related Problems

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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.