Home / 215,943.40-323,915.10-202,810.60

Finding the Fourth Proportional to 215,943.40, 323,915.10 and 202,810.60

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Solution

The fourth proportional to 215,943.40, 323,915.10 and 202,810.60 is: 304,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,943.40 : 323,915.10 = 202,810.60 : x
  2. Step 2: Convert to fraction form
    215,943.40/323,915.10 = 202,810.60/x
  3. Step 3: Cross multiply
    215,943.40x = 323,915.10 × 202,810.60
  4. Step 4: Simplify right side
    215,943.40x = 65,693,415,780.06
  5. Step 5: Solve for x
    x = 65,693,415,780.06/215,943.40
  6. Step 6: Final answer
    x = 304,215.90

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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.