Home / 398,686.32-550,166.18-226,581.30

Finding the Fourth Proportional to 398,686.32, 550,166.18 and 226,581.30

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Solution

The fourth proportional to 398,686.32, 550,166.18 and 226,581.30 is: 312,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,686.32 : 550,166.18 = 226,581.30 : x
  2. Step 2: Convert to fraction form
    398,686.32/550,166.18 = 226,581.30/x
  3. Step 3: Cross multiply
    398,686.32x = 550,166.18 × 226,581.30
  4. Step 4: Simplify right side
    398,686.32x = 124,657,367,147.53
  5. Step 5: Solve for x
    x = 124,657,367,147.53/398,686.32
  6. Step 6: Final answer
    x = 312,670.29

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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.