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Finding the Fourth Proportional to 576,986.20, 865,479.30 and 150,521.20

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Solution

The fourth proportional to 576,986.20, 865,479.30 and 150,521.20 is: 225,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,986.20 : 865,479.30 = 150,521.20 : x
  2. Step 2: Convert to fraction form
    576,986.20/865,479.30 = 150,521.20/x
  3. Step 3: Cross multiply
    576,986.20x = 865,479.30 × 150,521.20
  4. Step 4: Simplify right side
    576,986.20x = 130,272,982,811.16
  5. Step 5: Solve for x
    x = 130,272,982,811.16/576,986.20
  6. Step 6: Final answer
    x = 225,781.80

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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.