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Finding the Fourth Proportional to 162,384.67, 243,410.90 and 82,274.21

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Solution

The fourth proportional to 162,384.67, 243,410.90 and 82,274.21 is: 123,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,384.67 : 243,410.90 = 82,274.21 : x
  2. Step 2: Convert to fraction form
    162,384.67/243,410.90 = 82,274.21/x
  3. Step 3: Cross multiply
    162,384.67x = 243,410.90 × 82,274.21
  4. Step 4: Simplify right side
    162,384.67x = 20,026,439,700.05
  5. Step 5: Solve for x
    x = 20,026,439,700.05/162,384.67
  6. Step 6: Final answer
    x = 123,327.16

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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.