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Finding the Fourth Proportional to 332,290.70, 498,436.05 and 155,143.70

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Solution

The fourth proportional to 332,290.70, 498,436.05 and 155,143.70 is: 232,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,290.70 : 498,436.05 = 155,143.70 : x
  2. Step 2: Convert to fraction form
    332,290.70/498,436.05 = 155,143.70/x
  3. Step 3: Cross multiply
    332,290.70x = 498,436.05 × 155,143.70
  4. Step 4: Simplify right side
    332,290.70x = 77,329,213,010.39
  5. Step 5: Solve for x
    x = 77,329,213,010.39/332,290.70
  6. Step 6: Final answer
    x = 232,715.55

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1.5x scale

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.