Home / 415,921.12-624,158.40-226,429.28

Finding the Fourth Proportional to 415,921.12, 624,158.40 and 226,429.28

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Solution

The fourth proportional to 415,921.12, 624,158.40 and 226,429.28 is: 339,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,921.12 : 624,158.40 = 226,429.28 : x
  2. Step 2: Convert to fraction form
    415,921.12/624,158.40 = 226,429.28/x
  3. Step 3: Cross multiply
    415,921.12x = 624,158.40 × 226,429.28
  4. Step 4: Simplify right side
    415,921.12x = 141,327,737,117.95
  5. Step 5: Solve for x
    x = 141,327,737,117.95/415,921.12
  6. Step 6: Final answer
    x = 339,794.57

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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.