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Finding the Fourth Proportional to 372,374, 513,837.24 and 211,177.52

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Solution

The fourth proportional to 372,374, 513,837.24 and 211,177.52 is: 291,402.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,374 : 513,837.24 = 211,177.52 : x
  2. Step 2: Convert to fraction form
    372,374/513,837.24 = 211,177.52/x
  3. Step 3: Cross multiply
    372,374x = 513,837.24 × 211,177.52
  4. Step 4: Simplify right side
    372,374x = 108,510,874,026.85
  5. Step 5: Solve for x
    x = 108,510,874,026.85/372,374
  6. Step 6: Final answer
    x = 291,402.93

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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.