Home / 438,088.60-656,355.30-271,682.20

Finding the Fourth Proportional to 438,088.60, 656,355.30 and 271,682.20

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Solution

The fourth proportional to 438,088.60, 656,355.30 and 271,682.20 is: 407,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,088.60 : 656,355.30 = 271,682.20 : x
  2. Step 2: Convert to fraction form
    438,088.60/656,355.30 = 271,682.20/x
  3. Step 3: Cross multiply
    438,088.60x = 656,355.30 × 271,682.20
  4. Step 4: Simplify right side
    438,088.60x = 178,320,051,885.66
  5. Step 5: Solve for x
    x = 178,320,051,885.66/438,088.60
  6. Step 6: Final answer
    x = 407,041.07

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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.