Home / 415,325.30-623,279.55-178,837.70

Finding the Fourth Proportional to 415,325.30, 623,279.55 and 178,837.70

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Solution

The fourth proportional to 415,325.30, 623,279.55 and 178,837.70 is: 268,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,325.30 : 623,279.55 = 178,837.70 : x
  2. Step 2: Convert to fraction form
    415,325.30/623,279.55 = 178,837.70/x
  3. Step 3: Cross multiply
    415,325.30x = 623,279.55 × 178,837.70
  4. Step 4: Simplify right side
    415,325.30x = 111,465,881,179.04
  5. Step 5: Solve for x
    x = 111,465,881,179.04/415,325.30
  6. Step 6: Final answer
    x = 268,382.11

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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.