Home / 381,789.48-526,885.38-212,025

Finding the Fourth Proportional to 381,789.48, 526,885.38 and 212,025

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Solution

The fourth proportional to 381,789.48, 526,885.38 and 212,025 is: 292,603.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,789.48 : 526,885.38 = 212,025 : x
  2. Step 2: Convert to fraction form
    381,789.48/526,885.38 = 212,025/x
  3. Step 3: Cross multiply
    381,789.48x = 526,885.38 × 212,025
  4. Step 4: Simplify right side
    381,789.48x = 111,712,872,694.50
  5. Step 5: Solve for x
    x = 111,712,872,694.50/381,789.48
  6. Step 6: Final answer
    x = 292,603.33

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1.5x scale

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.