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Finding the Fourth Proportional to 340,468.70, 510,812.40 and 150,855.80

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Solution

The fourth proportional to 340,468.70, 510,812.40 and 150,855.80 is: 226,332.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,468.70 : 510,812.40 = 150,855.80 : x
  2. Step 2: Convert to fraction form
    340,468.70/510,812.40 = 150,855.80/x
  3. Step 3: Cross multiply
    340,468.70x = 510,812.40 × 150,855.80
  4. Step 4: Simplify right side
    340,468.70x = 77,059,013,251.92
  5. Step 5: Solve for x
    x = 77,059,013,251.92/340,468.70
  6. Step 6: Final answer
    x = 226,332.15

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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.