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Finding the Fourth Proportional to 545.87, 752.60 and 446.18

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Solution

The fourth proportional to 545.87, 752.60 and 446.18 is: 615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.87 : 752.60 = 446.18 : x
  2. Step 2: Convert to fraction form
    545.87/752.60 = 446.18/x
  3. Step 3: Cross multiply
    545.87x = 752.60 × 446.18
  4. Step 4: Simplify right side
    545.87x = 335,795.07
  5. Step 5: Solve for x
    x = 335,795.07/545.87
  6. Step 6: Final answer
    x = 615.16

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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.