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Finding the Fourth Proportional to 545.90, 752.59 and 370.94

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Solution

The fourth proportional to 545.90, 752.59 and 370.94 is: 511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.90 : 752.59 = 370.94 : x
  2. Step 2: Convert to fraction form
    545.90/752.59 = 370.94/x
  3. Step 3: Cross multiply
    545.90x = 752.59 × 370.94
  4. Step 4: Simplify right side
    545.90x = 279,165.73
  5. Step 5: Solve for x
    x = 279,165.73/545.90
  6. Step 6: Final answer
    x = 511.39

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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.