Home / 279,322.07-385,473.15-158,468.45

Finding the Fourth Proportional to 279,322.07, 385,473.15 and 158,468.45

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Solution

The fourth proportional to 279,322.07, 385,473.15 and 158,468.45 is: 218,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,322.07 : 385,473.15 = 158,468.45 : x
  2. Step 2: Convert to fraction form
    279,322.07/385,473.15 = 158,468.45/x
  3. Step 3: Cross multiply
    279,322.07x = 385,473.15 × 158,468.45
  4. Step 4: Simplify right side
    279,322.07x = 61,085,330,669.75
  5. Step 5: Solve for x
    x = 61,085,330,669.75/279,322.07
  6. Step 6: Final answer
    x = 218,691.39

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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.