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Finding the Fourth Proportional to 423,540.89, 635,159.61 and 153,600.84

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Solution

The fourth proportional to 423,540.89, 635,159.61 and 153,600.84 is: 230,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,540.89 : 635,159.61 = 153,600.84 : x
  2. Step 2: Convert to fraction form
    423,540.89/635,159.61 = 153,600.84/x
  3. Step 3: Cross multiply
    423,540.89x = 635,159.61 × 153,600.84
  4. Step 4: Simplify right side
    423,540.89x = 97,561,049,630.07
  5. Step 5: Solve for x
    x = 97,561,049,630.07/423,540.89
  6. Step 6: Final answer
    x = 230,346.24

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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.