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Finding the Fourth Proportional to 492,314.58, 738,471.87 and 155,381.45

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Solution

The fourth proportional to 492,314.58, 738,471.87 and 155,381.45 is: 233,072.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,314.58 : 738,471.87 = 155,381.45 : x
  2. Step 2: Convert to fraction form
    492,314.58/738,471.87 = 155,381.45/x
  3. Step 3: Cross multiply
    492,314.58x = 738,471.87 × 155,381.45
  4. Step 4: Simplify right side
    492,314.58x = 114,744,826,252.45
  5. Step 5: Solve for x
    x = 114,744,826,252.45/492,314.58
  6. Step 6: Final answer
    x = 233,072.17

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Similar ratio
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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.