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Finding the Fourth Proportional to 162,401.60, 243,640.80 and 51,593.60

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Solution

The fourth proportional to 162,401.60, 243,640.80 and 51,593.60 is: 77,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,401.60 : 243,640.80 = 51,593.60 : x
  2. Step 2: Convert to fraction form
    162,401.60/243,640.80 = 51,593.60/x
  3. Step 3: Cross multiply
    162,401.60x = 243,640.80 × 51,593.60
  4. Step 4: Simplify right side
    162,401.60x = 12,570,305,978.88
  5. Step 5: Solve for x
    x = 12,570,305,978.88/162,401.60
  6. Step 6: Final answer
    x = 77,402.60

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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.