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Finding the Fourth Proportional to 426,857.27, 640,098.27 and 227,130.14

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Solution

The fourth proportional to 426,857.27, 640,098.27 and 227,130.14 is: 340,595.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,857.27 : 640,098.27 = 227,130.14 : x
  2. Step 2: Convert to fraction form
    426,857.27/640,098.27 = 227,130.14/x
  3. Step 3: Cross multiply
    426,857.27x = 640,098.27 × 227,130.14
  4. Step 4: Simplify right side
    426,857.27x = 145,385,611,279.10
  5. Step 5: Solve for x
    x = 145,385,611,279.10/426,857.27
  6. Step 6: Final answer
    x = 340,595.38

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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.