Home / 205,600.52-308,251.26-138,875.24

Finding the Fourth Proportional to 205,600.52, 308,251.26 and 138,875.24

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Solution

The fourth proportional to 205,600.52, 308,251.26 and 138,875.24 is: 208,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,600.52 : 308,251.26 = 138,875.24 : x
  2. Step 2: Convert to fraction form
    205,600.52/308,251.26 = 138,875.24/x
  3. Step 3: Cross multiply
    205,600.52x = 308,251.26 × 138,875.24
  4. Step 4: Simplify right side
    205,600.52x = 42,808,467,712.80
  5. Step 5: Solve for x
    x = 42,808,467,712.80/205,600.52
  6. Step 6: Final answer
    x = 208,211.86

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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.