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Finding the Fourth Proportional to 440,643.07, 660,963.25 and 125,100.19

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Solution

The fourth proportional to 440,643.07, 660,963.25 and 125,100.19 is: 187,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,643.07 : 660,963.25 = 125,100.19 : x
  2. Step 2: Convert to fraction form
    440,643.07/660,963.25 = 125,100.19/x
  3. Step 3: Cross multiply
    440,643.07x = 660,963.25 × 125,100.19
  4. Step 4: Simplify right side
    440,643.07x = 82,686,628,158.02
  5. Step 5: Solve for x
    x = 82,686,628,158.02/440,643.07
  6. Step 6: Final answer
    x = 187,649.90

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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.