Home / 279,516.06-385,848.08-211,552

Finding the Fourth Proportional to 279,516.06, 385,848.08 and 211,552

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Solution

The fourth proportional to 279,516.06, 385,848.08 and 211,552 is: 292,029.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,516.06 : 385,848.08 = 211,552 : x
  2. Step 2: Convert to fraction form
    279,516.06/385,848.08 = 211,552/x
  3. Step 3: Cross multiply
    279,516.06x = 385,848.08 × 211,552
  4. Step 4: Simplify right side
    279,516.06x = 81,626,933,020.16
  5. Step 5: Solve for x
    x = 81,626,933,020.16/279,516.06
  6. Step 6: Final answer
    x = 292,029.49

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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.