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Finding the Fourth Proportional to 157,466.44, 217,323.30 and 90,397

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Solution

The fourth proportional to 157,466.44, 217,323.30 and 90,397 is: 124,759.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,466.44 : 217,323.30 = 90,397 : x
  2. Step 2: Convert to fraction form
    157,466.44/217,323.30 = 90,397/x
  3. Step 3: Cross multiply
    157,466.44x = 217,323.30 × 90,397
  4. Step 4: Simplify right side
    157,466.44x = 19,645,374,350.10
  5. Step 5: Solve for x
    x = 19,645,374,350.10/157,466.44
  6. Step 6: Final answer
    x = 124,759.12

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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.