Home / 279,490.37-385,677.25-158,634.11

Finding the Fourth Proportional to 279,490.37, 385,677.25 and 158,634.11

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Solution

The fourth proportional to 279,490.37, 385,677.25 and 158,634.11 is: 218,904.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,490.37 : 385,677.25 = 158,634.11 : x
  2. Step 2: Convert to fraction form
    279,490.37/385,677.25 = 158,634.11/x
  3. Step 3: Cross multiply
    279,490.37x = 385,677.25 × 158,634.11
  4. Step 4: Simplify right side
    279,490.37x = 61,181,567,868.61
  5. Step 5: Solve for x
    x = 61,181,567,868.61/279,490.37
  6. Step 6: Final answer
    x = 218,904.03

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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.