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Finding the Fourth Proportional to 237,447.52, 327,678.08 and 128,553

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Solution

The fourth proportional to 237,447.52, 327,678.08 and 128,553 is: 177,403.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,447.52 : 327,678.08 = 128,553 : x
  2. Step 2: Convert to fraction form
    237,447.52/327,678.08 = 128,553/x
  3. Step 3: Cross multiply
    237,447.52x = 327,678.08 × 128,553
  4. Step 4: Simplify right side
    237,447.52x = 42,124,000,218.24
  5. Step 5: Solve for x
    x = 42,124,000,218.24/237,447.52
  6. Step 6: Final answer
    x = 177,403.41

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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.