Home / 426,166.08-639,083.04-159,781.28

Finding the Fourth Proportional to 426,166.08, 639,083.04 and 159,781.28

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Solution

The fourth proportional to 426,166.08, 639,083.04 and 159,781.28 is: 239,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,166.08 : 639,083.04 = 159,781.28 : x
  2. Step 2: Convert to fraction form
    426,166.08/639,083.04 = 159,781.28/x
  3. Step 3: Cross multiply
    426,166.08x = 639,083.04 × 159,781.28
  4. Step 4: Simplify right side
    426,166.08x = 102,113,506,157.49
  5. Step 5: Solve for x
    x = 102,113,506,157.49/426,166.08
  6. Step 6: Final answer
    x = 239,609.65

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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.