Home / 371,326.20-556,989.30-90,843.45

Finding the Fourth Proportional to 371,326.20, 556,989.30 and 90,843.45

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Solution

The fourth proportional to 371,326.20, 556,989.30 and 90,843.45 is: 136,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,326.20 : 556,989.30 = 90,843.45 : x
  2. Step 2: Convert to fraction form
    371,326.20/556,989.30 = 90,843.45/x
  3. Step 3: Cross multiply
    371,326.20x = 556,989.30 × 90,843.45
  4. Step 4: Simplify right side
    371,326.20x = 50,598,829,625.09
  5. Step 5: Solve for x
    x = 50,598,829,625.09/371,326.20
  6. Step 6: Final answer
    x = 136,265.18

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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.