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Finding the Fourth Proportional to 314,553.68, 471,827.64 and 127,520.72

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Solution

The fourth proportional to 314,553.68, 471,827.64 and 127,520.72 is: 191,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,553.68 : 471,827.64 = 127,520.72 : x
  2. Step 2: Convert to fraction form
    314,553.68/471,827.64 = 127,520.72/x
  3. Step 3: Cross multiply
    314,553.68x = 471,827.64 × 127,520.72
  4. Step 4: Simplify right side
    314,553.68x = 60,167,800,368.70
  5. Step 5: Solve for x
    x = 60,167,800,368.70/314,553.68
  6. Step 6: Final answer
    x = 191,279.91

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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.