Home / 440,240.25-660,455.10-136,628.40

Finding the Fourth Proportional to 440,240.25, 660,455.10 and 136,628.40

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Solution

The fourth proportional to 440,240.25, 660,455.10 and 136,628.40 is: 204,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,240.25 : 660,455.10 = 136,628.40 : x
  2. Step 2: Convert to fraction form
    440,240.25/660,455.10 = 136,628.40/x
  3. Step 3: Cross multiply
    440,240.25x = 660,455.10 × 136,628.40
  4. Step 4: Simplify right side
    440,240.25x = 90,236,923,584.84
  5. Step 5: Solve for x
    x = 90,236,923,584.84/440,240.25
  6. Step 6: Final answer
    x = 204,972.00

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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.