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Finding the Fourth Proportional to 545.28, 752.64 and 370.60

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Solution

The fourth proportional to 545.28, 752.64 and 370.60 is: 511.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.28 : 752.64 = 370.60 : x
  2. Step 2: Convert to fraction form
    545.28/752.64 = 370.60/x
  3. Step 3: Cross multiply
    545.28x = 752.64 × 370.60
  4. Step 4: Simplify right side
    545.28x = 278,928.38
  5. Step 5: Solve for x
    x = 278,928.38/545.28
  6. Step 6: Final answer
    x = 511.53

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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.