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Finding the Fourth Proportional to 545.04, 752.42 and 371.30

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Solution

The fourth proportional to 545.04, 752.42 and 371.30 is: 512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.04 : 752.42 = 371.30 : x
  2. Step 2: Convert to fraction form
    545.04/752.42 = 371.30/x
  3. Step 3: Cross multiply
    545.04x = 752.42 × 371.30
  4. Step 4: Simplify right side
    545.04x = 279,370.71
  5. Step 5: Solve for x
    x = 279,370.71/545.04
  6. Step 6: Final answer
    x = 512.57

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