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Finding the Fourth Proportional to 440,350.32, 660,787.91 and 159,889.44

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Solution

The fourth proportional to 440,350.32, 660,787.91 and 159,889.44 is: 239,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,350.32 : 660,787.91 = 159,889.44 : x
  2. Step 2: Convert to fraction form
    440,350.32/660,787.91 = 159,889.44/x
  3. Step 3: Cross multiply
    440,350.32x = 660,787.91 × 159,889.44
  4. Step 4: Simplify right side
    440,350.32x = 105,653,008,888.67
  5. Step 5: Solve for x
    x = 105,653,008,888.67/440,350.32
  6. Step 6: Final answer
    x = 239,929.45

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1.5x scale

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.