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Finding the Fourth Proportional to 423,422.17, 635,258.02 and 170,572.54

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Solution

The fourth proportional to 423,422.17, 635,258.02 and 170,572.54 is: 255,909.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,422.17 : 635,258.02 = 170,572.54 : x
  2. Step 2: Convert to fraction form
    423,422.17/635,258.02 = 170,572.54/x
  3. Step 3: Cross multiply
    423,422.17x = 635,258.02 × 170,572.54
  4. Step 4: Simplify right side
    423,422.17x = 108,357,573,173.91
  5. Step 5: Solve for x
    x = 108,357,573,173.91/423,422.17
  6. Step 6: Final answer
    x = 255,909.07

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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.