Home / 291,914.60-438,044.84-123,425.72

Finding the Fourth Proportional to 291,914.60, 438,044.84 and 123,425.72

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Solution

The fourth proportional to 291,914.60, 438,044.84 and 123,425.72 is: 185,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,914.60 : 438,044.84 = 123,425.72 : x
  2. Step 2: Convert to fraction form
    291,914.60/438,044.84 = 123,425.72/x
  3. Step 3: Cross multiply
    291,914.60x = 438,044.84 × 123,425.72
  4. Step 4: Simplify right side
    291,914.60x = 54,065,999,769.28
  5. Step 5: Solve for x
    x = 54,065,999,769.28/291,914.60
  6. Step 6: Final answer
    x = 185,211.70

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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.