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Finding the Fourth Proportional to 423,884.88, 635,728.68 and 157,770.72

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Solution

The fourth proportional to 423,884.88, 635,728.68 and 157,770.72 is: 236,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,884.88 : 635,728.68 = 157,770.72 : x
  2. Step 2: Convert to fraction form
    423,884.88/635,728.68 = 157,770.72/x
  3. Step 3: Cross multiply
    423,884.88x = 635,728.68 × 157,770.72
  4. Step 4: Simplify right side
    423,884.88x = 100,299,371,568.25
  5. Step 5: Solve for x
    x = 100,299,371,568.25/423,884.88
  6. Step 6: Final answer
    x = 236,619.37

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1.5x scale

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.