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Finding the Fourth Proportional to 426,146.04, 639,052.92 and 159,761.34

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Solution

The fourth proportional to 426,146.04, 639,052.92 and 159,761.34 is: 239,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,146.04 : 639,052.92 = 159,761.34 : x
  2. Step 2: Convert to fraction form
    426,146.04/639,052.92 = 159,761.34/x
  3. Step 3: Cross multiply
    426,146.04x = 639,052.92 × 159,761.34
  4. Step 4: Simplify right side
    426,146.04x = 102,095,950,830.11
  5. Step 5: Solve for x
    x = 102,095,950,830.11/426,146.04
  6. Step 6: Final answer
    x = 239,579.72

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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.