Home / 371,823.13-513,159.66-220,920.13

Finding the Fourth Proportional to 371,823.13, 513,159.66 and 220,920.13

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Solution

The fourth proportional to 371,823.13, 513,159.66 and 220,920.13 is: 304,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,823.13 : 513,159.66 = 220,920.13 : x
  2. Step 2: Convert to fraction form
    371,823.13/513,159.66 = 220,920.13/x
  3. Step 3: Cross multiply
    371,823.13x = 513,159.66 × 220,920.13
  4. Step 4: Simplify right side
    371,823.13x = 113,367,295,127.56
  5. Step 5: Solve for x
    x = 113,367,295,127.56/371,823.13
  6. Step 6: Final answer
    x = 304,895.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.