Home / 434,080.20-651,120.30-153,625.80

Finding the Fourth Proportional to 434,080.20, 651,120.30 and 153,625.80

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Solution

The fourth proportional to 434,080.20, 651,120.30 and 153,625.80 is: 230,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,080.20 : 651,120.30 = 153,625.80 : x
  2. Step 2: Convert to fraction form
    434,080.20/651,120.30 = 153,625.80/x
  3. Step 3: Cross multiply
    434,080.20x = 651,120.30 × 153,625.80
  4. Step 4: Simplify right side
    434,080.20x = 100,028,876,983.74
  5. Step 5: Solve for x
    x = 100,028,876,983.74/434,080.20
  6. Step 6: Final answer
    x = 230,438.70

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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.