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Finding the Fourth Proportional to 440,148.60, 660,482.10 and 159,694.20

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Solution

The fourth proportional to 440,148.60, 660,482.10 and 159,694.20 is: 239,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,148.60 : 660,482.10 = 159,694.20 : x
  2. Step 2: Convert to fraction form
    440,148.60/660,482.10 = 159,694.20/x
  3. Step 3: Cross multiply
    440,148.60x = 660,482.10 × 159,694.20
  4. Step 4: Simplify right side
    440,148.60x = 105,475,160,573.82
  5. Step 5: Solve for x
    x = 105,475,160,573.82/440,148.60
  6. Step 6: Final answer
    x = 239,635.34

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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.