Home / 398,931.15-550,449.66-237,801.24

Finding the Fourth Proportional to 398,931.15, 550,449.66 and 237,801.24

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Solution

The fourth proportional to 398,931.15, 550,449.66 and 237,801.24 is: 328,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,931.15 : 550,449.66 = 237,801.24 : x
  2. Step 2: Convert to fraction form
    398,931.15/550,449.66 = 237,801.24/x
  3. Step 3: Cross multiply
    398,931.15x = 550,449.66 × 237,801.24
  4. Step 4: Simplify right side
    398,931.15x = 130,897,611,705.58
  5. Step 5: Solve for x
    x = 130,897,611,705.58/398,931.15
  6. Step 6: Final answer
    x = 328,120.81

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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.