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Finding the Fourth Proportional to 440,015.80, 660,023.70 and 159,542.20

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Solution

The fourth proportional to 440,015.80, 660,023.70 and 159,542.20 is: 239,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,015.80 : 660,023.70 = 159,542.20 : x
  2. Step 2: Convert to fraction form
    440,015.80/660,023.70 = 159,542.20/x
  3. Step 3: Cross multiply
    440,015.80x = 660,023.70 × 159,542.20
  4. Step 4: Simplify right side
    440,015.80x = 105,301,633,150.14
  5. Step 5: Solve for x
    x = 105,301,633,150.14/440,015.80
  6. Step 6: Final answer
    x = 239,313.30

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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.