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Finding the Fourth Proportional to 165,082.60, 247,623.90 and 40,423.60

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Solution

The fourth proportional to 165,082.60, 247,623.90 and 40,423.60 is: 60,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,082.60 : 247,623.90 = 40,423.60 : x
  2. Step 2: Convert to fraction form
    165,082.60/247,623.90 = 40,423.60/x
  3. Step 3: Cross multiply
    165,082.60x = 247,623.90 × 40,423.60
  4. Step 4: Simplify right side
    165,082.60x = 10,009,849,484.04
  5. Step 5: Solve for x
    x = 10,009,849,484.04/165,082.60
  6. Step 6: Final answer
    x = 60,635.40

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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.