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Finding the Fourth Proportional to 332,291.20, 498,436.80 and 155,144.20

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Solution

The fourth proportional to 332,291.20, 498,436.80 and 155,144.20 is: 232,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,291.20 : 498,436.80 = 155,144.20 : x
  2. Step 2: Convert to fraction form
    332,291.20/498,436.80 = 155,144.20/x
  3. Step 3: Cross multiply
    332,291.20x = 498,436.80 × 155,144.20
  4. Step 4: Simplify right side
    332,291.20x = 77,329,578,586.56
  5. Step 5: Solve for x
    x = 77,329,578,586.56/332,291.20
  6. Step 6: Final answer
    x = 232,716.30

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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.