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Finding the Fourth Proportional to 440,334.40, 660,501.60 and 159,815.20

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Solution

The fourth proportional to 440,334.40, 660,501.60 and 159,815.20 is: 239,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,334.40 : 660,501.60 = 159,815.20 : x
  2. Step 2: Convert to fraction form
    440,334.40/660,501.60 = 159,815.20/x
  3. Step 3: Cross multiply
    440,334.40x = 660,501.60 × 159,815.20
  4. Step 4: Simplify right side
    440,334.40x = 105,558,195,304.32
  5. Step 5: Solve for x
    x = 105,558,195,304.32/440,334.40
  6. Step 6: Final answer
    x = 239,722.80

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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.