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Finding the Fourth Proportional to 423,768.16, 635,643.90 and 171,041.92

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Solution

The fourth proportional to 423,768.16, 635,643.90 and 171,041.92 is: 256,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,768.16 : 635,643.90 = 171,041.92 : x
  2. Step 2: Convert to fraction form
    423,768.16/635,643.90 = 171,041.92/x
  3. Step 3: Cross multiply
    423,768.16x = 635,643.90 × 171,041.92
  4. Step 4: Simplify right side
    423,768.16x = 108,721,753,092.29
  5. Step 5: Solve for x
    x = 108,721,753,092.29/423,768.16
  6. Step 6: Final answer
    x = 256,559.51

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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.