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Finding the Fourth Proportional to 440,479.22, 660,679.94 and 159,998.90

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Solution

The fourth proportional to 440,479.22, 660,679.94 and 159,998.90 is: 239,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,479.22 : 660,679.94 = 159,998.90 : x
  2. Step 2: Convert to fraction form
    440,479.22/660,679.94 = 159,998.90/x
  3. Step 3: Cross multiply
    440,479.22x = 660,679.94 × 159,998.90
  4. Step 4: Simplify right side
    440,479.22x = 105,708,060,748.66
  5. Step 5: Solve for x
    x = 105,708,060,748.66/440,479.22
  6. Step 6: Final answer
    x = 239,984.22

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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.