Home / 279,383.56-385,557.50-152,067.40

Finding the Fourth Proportional to 279,383.56, 385,557.50 and 152,067.40

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Solution

The fourth proportional to 279,383.56, 385,557.50 and 152,067.40 is: 209,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,383.56 : 385,557.50 = 152,067.40 : x
  2. Step 2: Convert to fraction form
    279,383.56/385,557.50 = 152,067.40/x
  3. Step 3: Cross multiply
    279,383.56x = 385,557.50 × 152,067.40
  4. Step 4: Simplify right side
    279,383.56x = 58,630,726,575.50
  5. Step 5: Solve for x
    x = 58,630,726,575.50/279,383.56
  6. Step 6: Final answer
    x = 209,857.47

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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.