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Finding the Fourth Proportional to 162,463.60, 243,039.30 and 140,520.70

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Solution

The fourth proportional to 162,463.60, 243,039.30 and 140,520.70 is: 210,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,463.60 : 243,039.30 = 140,520.70 : x
  2. Step 2: Convert to fraction form
    162,463.60/243,039.30 = 140,520.70/x
  3. Step 3: Cross multiply
    162,463.60x = 243,039.30 × 140,520.70
  4. Step 4: Simplify right side
    162,463.60x = 34,152,052,563.51
  5. Step 5: Solve for x
    x = 34,152,052,563.51/162,463.60
  6. Step 6: Final answer
    x = 210,213.57

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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.