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Finding the Fourth Proportional to 251,569.20, 376,697.70 and 239,759.40

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Solution

The fourth proportional to 251,569.20, 376,697.70 and 239,759.40 is: 359,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,569.20 : 376,697.70 = 239,759.40 : x
  2. Step 2: Convert to fraction form
    251,569.20/376,697.70 = 239,759.40/x
  3. Step 3: Cross multiply
    251,569.20x = 376,697.70 × 239,759.40
  4. Step 4: Simplify right side
    251,569.20x = 90,316,814,533.38
  5. Step 5: Solve for x
    x = 90,316,814,533.38/251,569.20
  6. Step 6: Final answer
    x = 359,013.80

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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.