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Finding the Fourth Proportional to 426,084.30, 639,350.01 and 160,028.46

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Solution

The fourth proportional to 426,084.30, 639,350.01 and 160,028.46 is: 240,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,084.30 : 639,350.01 = 160,028.46 : x
  2. Step 2: Convert to fraction form
    426,084.30/639,350.01 = 160,028.46/x
  3. Step 3: Cross multiply
    426,084.30x = 639,350.01 × 160,028.46
  4. Step 4: Simplify right side
    426,084.30x = 102,314,197,501.29
  5. Step 5: Solve for x
    x = 102,314,197,501.29/426,084.30
  6. Step 6: Final answer
    x = 240,126.65

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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.