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Finding the Fourth Proportional to 162,380.60, 243,609.30 and 51,572.60

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Solution

The fourth proportional to 162,380.60, 243,609.30 and 51,572.60 is: 77,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,380.60 : 243,609.30 = 51,572.60 : x
  2. Step 2: Convert to fraction form
    162,380.60/243,609.30 = 51,572.60/x
  3. Step 3: Cross multiply
    162,380.60x = 243,609.30 × 51,572.60
  4. Step 4: Simplify right side
    162,380.60x = 12,563,564,985.18
  5. Step 5: Solve for x
    x = 12,563,564,985.18/162,380.60
  6. Step 6: Final answer
    x = 77,371.10

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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.