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Finding the Fourth Proportional to 440,261.76, 660,392.64 and 159,778.56

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Solution

The fourth proportional to 440,261.76, 660,392.64 and 159,778.56 is: 239,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,261.76 : 660,392.64 = 159,778.56 : x
  2. Step 2: Convert to fraction form
    440,261.76/660,392.64 = 159,778.56/x
  3. Step 3: Cross multiply
    440,261.76x = 660,392.64 × 159,778.56
  4. Step 4: Simplify right side
    440,261.76x = 105,516,585,053.80
  5. Step 5: Solve for x
    x = 105,516,585,053.80/440,261.76
  6. Step 6: Final answer
    x = 239,667.84

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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.