Home / 398,988.15-550,528.11-237,858.18

Finding the Fourth Proportional to 398,988.15, 550,528.11 and 237,858.18

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Solution

The fourth proportional to 398,988.15, 550,528.11 and 237,858.18 is: 328,199.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,988.15 : 550,528.11 = 237,858.18 : x
  2. Step 2: Convert to fraction form
    398,988.15/550,528.11 = 237,858.18/x
  3. Step 3: Cross multiply
    398,988.15x = 550,528.11 × 237,858.18
  4. Step 4: Simplify right side
    398,988.15x = 130,947,614,283.44
  5. Step 5: Solve for x
    x = 130,947,614,283.44/398,988.15
  6. Step 6: Final answer
    x = 328,199.26

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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.