Home / 381,890.82-527,026.01-212,124.95

Finding the Fourth Proportional to 381,890.82, 527,026.01 and 212,124.95

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Solution

The fourth proportional to 381,890.82, 527,026.01 and 212,124.95 is: 292,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,890.82 : 527,026.01 = 212,124.95 : x
  2. Step 2: Convert to fraction form
    381,890.82/527,026.01 = 212,124.95/x
  3. Step 3: Cross multiply
    381,890.82x = 527,026.01 × 212,124.95
  4. Step 4: Simplify right side
    381,890.82x = 111,795,363,384.82
  5. Step 5: Solve for x
    x = 111,795,363,384.82/381,890.82
  6. Step 6: Final answer
    x = 292,741.69

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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.