Home / 213,962.52-320,434.40-123,815.22

Finding the Fourth Proportional to 213,962.52, 320,434.40 and 123,815.22

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Solution

The fourth proportional to 213,962.52, 320,434.40 and 123,815.22 is: 185,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,962.52 : 320,434.40 = 123,815.22 : x
  2. Step 2: Convert to fraction form
    213,962.52/320,434.40 = 123,815.22/x
  3. Step 3: Cross multiply
    213,962.52x = 320,434.40 × 123,815.22
  4. Step 4: Simplify right side
    213,962.52x = 39,674,655,731.57
  5. Step 5: Solve for x
    x = 39,674,655,731.57/213,962.52
  6. Step 6: Final answer
    x = 185,428.06

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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.