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Finding the Fourth Proportional to 237,805.78, 328,171.95 and 130,376.56

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Solution

The fourth proportional to 237,805.78, 328,171.95 and 130,376.56 is: 179,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,805.78 : 328,171.95 = 130,376.56 : x
  2. Step 2: Convert to fraction form
    237,805.78/328,171.95 = 130,376.56/x
  3. Step 3: Cross multiply
    237,805.78x = 328,171.95 × 130,376.56
  4. Step 4: Simplify right side
    237,805.78x = 42,785,929,929.49
  5. Step 5: Solve for x
    x = 42,785,929,929.49/237,805.78
  6. Step 6: Final answer
    x = 179,919.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.