Home / 440,031.20-660,041.21-140,507.98

Finding the Fourth Proportional to 440,031.20, 660,041.21 and 140,507.98

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Solution

The fourth proportional to 440,031.20, 660,041.21 and 140,507.98 is: 210,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,031.20 : 660,041.21 = 140,507.98 : x
  2. Step 2: Convert to fraction form
    440,031.20/660,041.21 = 140,507.98/x
  3. Step 3: Cross multiply
    440,031.20x = 660,041.21 × 140,507.98
  4. Step 4: Simplify right side
    440,031.20x = 92,741,055,835.02
  5. Step 5: Solve for x
    x = 92,741,055,835.02/440,031.20
  6. Step 6: Final answer
    x = 210,760.18

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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.