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Finding the Fourth Proportional to 162,520.40, 243,343.20 and 162,520.40

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Solution

The fourth proportional to 162,520.40, 243,343.20 and 162,520.40 is: 243,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,520.40 : 243,343.20 = 162,520.40 : x
  2. Step 2: Convert to fraction form
    162,520.40/243,343.20 = 162,520.40/x
  3. Step 3: Cross multiply
    162,520.40x = 243,343.20 × 162,520.40
  4. Step 4: Simplify right side
    162,520.40x = 39,548,234,201.28
  5. Step 5: Solve for x
    x = 39,548,234,201.28/162,520.40
  6. Step 6: Final answer
    x = 243,343.20

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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.