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Finding the Fourth Proportional to 424,158.22, 636,069.93 and 171,391.06

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Solution

The fourth proportional to 424,158.22, 636,069.93 and 171,391.06 is: 257,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,158.22 : 636,069.93 = 171,391.06 : x
  2. Step 2: Convert to fraction form
    424,158.22/636,069.93 = 171,391.06/x
  3. Step 3: Cross multiply
    424,158.22x = 636,069.93 × 171,391.06
  4. Step 4: Simplify right side
    424,158.22x = 109,016,699,536.83
  5. Step 5: Solve for x
    x = 109,016,699,536.83/424,158.22
  6. Step 6: Final answer
    x = 257,018.95

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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.