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Finding the Fourth Proportional to 193,748.70, 290,428.65 and 88,643.10

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Solution

The fourth proportional to 193,748.70, 290,428.65 and 88,643.10 is: 132,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,748.70 : 290,428.65 = 88,643.10 : x
  2. Step 2: Convert to fraction form
    193,748.70/290,428.65 = 88,643.10/x
  3. Step 3: Cross multiply
    193,748.70x = 290,428.65 × 88,643.10
  4. Step 4: Simplify right side
    193,748.70x = 25,744,495,864.82
  5. Step 5: Solve for x
    x = 25,744,495,864.82/193,748.70
  6. Step 6: Final answer
    x = 132,875.71

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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.