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Finding the Fourth Proportional to 402,382.38, 603,667.08 and 118,061.46

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Solution

The fourth proportional to 402,382.38, 603,667.08 and 118,061.46 is: 177,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,382.38 : 603,667.08 = 118,061.46 : x
  2. Step 2: Convert to fraction form
    402,382.38/603,667.08 = 118,061.46/x
  3. Step 3: Cross multiply
    402,382.38x = 603,667.08 × 118,061.46
  4. Step 4: Simplify right side
    402,382.38x = 71,269,816,818.74
  5. Step 5: Solve for x
    x = 71,269,816,818.74/402,382.38
  6. Step 6: Final answer
    x = 177,119.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.