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Finding the Fourth Proportional to 191,598.60, 287,176.16 and 90,460.79

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Solution

The fourth proportional to 191,598.60, 287,176.16 and 90,460.79 is: 135,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,598.60 : 287,176.16 = 90,460.79 : x
  2. Step 2: Convert to fraction form
    191,598.60/287,176.16 = 90,460.79/x
  3. Step 3: Cross multiply
    191,598.60x = 287,176.16 × 90,460.79
  4. Step 4: Simplify right side
    191,598.60x = 25,978,180,414.58
  5. Step 5: Solve for x
    x = 25,978,180,414.58/191,598.60
  6. Step 6: Final answer
    x = 135,586.48

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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.