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Finding the Fourth Proportional to 162,286.80, 243,430.20 and 99,992.40

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Solution

The fourth proportional to 162,286.80, 243,430.20 and 99,992.40 is: 149,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,286.80 : 243,430.20 = 99,992.40 : x
  2. Step 2: Convert to fraction form
    162,286.80/243,430.20 = 99,992.40/x
  3. Step 3: Cross multiply
    162,286.80x = 243,430.20 × 99,992.40
  4. Step 4: Simplify right side
    162,286.80x = 24,341,169,930.48
  5. Step 5: Solve for x
    x = 24,341,169,930.48/162,286.80
  6. Step 6: Final answer
    x = 149,988.60

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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.