Home / 207,557.13-311,434.11-123,483.39

Finding the Fourth Proportional to 207,557.13, 311,434.11 and 123,483.39

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Solution

The fourth proportional to 207,557.13, 311,434.11 and 123,483.39 is: 185,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,557.13 : 311,434.11 = 123,483.39 : x
  2. Step 2: Convert to fraction form
    207,557.13/311,434.11 = 123,483.39/x
  3. Step 3: Cross multiply
    207,557.13x = 311,434.11 × 123,483.39
  4. Step 4: Simplify right side
    207,557.13x = 38,456,939,664.43
  5. Step 5: Solve for x
    x = 38,456,939,664.43/207,557.13
  6. Step 6: Final answer
    x = 185,283.64

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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.