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Finding the Fourth Proportional to 440,480.22, 660,681.44 and 159,999.90

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Solution

The fourth proportional to 440,480.22, 660,681.44 and 159,999.90 is: 239,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,480.22 : 660,681.44 = 159,999.90 : x
  2. Step 2: Convert to fraction form
    440,480.22/660,681.44 = 159,999.90/x
  3. Step 3: Cross multiply
    440,480.22x = 660,681.44 × 159,999.90
  4. Step 4: Simplify right side
    440,480.22x = 105,708,964,331.86
  5. Step 5: Solve for x
    x = 105,708,964,331.86/440,480.22
  6. Step 6: Final answer
    x = 239,985.72

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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.