Home / 438,044.20-656,936.70-171,651.40

Finding the Fourth Proportional to 438,044.20, 656,936.70 and 171,651.40

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Solution

The fourth proportional to 438,044.20, 656,936.70 and 171,651.40 is: 257,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,044.20 : 656,936.70 = 171,651.40 : x
  2. Step 2: Convert to fraction form
    438,044.20/656,936.70 = 171,651.40/x
  3. Step 3: Cross multiply
    438,044.20x = 656,936.70 × 171,651.40
  4. Step 4: Simplify right side
    438,044.20x = 112,764,104,266.38
  5. Step 5: Solve for x
    x = 112,764,104,266.38/438,044.20
  6. Step 6: Final answer
    x = 257,426.32

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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.