Home / 349,267.78-523,904.91-138,959.38

Finding the Fourth Proportional to 349,267.78, 523,904.91 and 138,959.38

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Solution

The fourth proportional to 349,267.78, 523,904.91 and 138,959.38 is: 208,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,267.78 : 523,904.91 = 138,959.38 : x
  2. Step 2: Convert to fraction form
    349,267.78/523,904.91 = 138,959.38/x
  3. Step 3: Cross multiply
    349,267.78x = 523,904.91 × 138,959.38
  4. Step 4: Simplify right side
    349,267.78x = 72,801,501,472.56
  5. Step 5: Solve for x
    x = 72,801,501,472.56/349,267.78
  6. Step 6: Final answer
    x = 208,440.36

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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.