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Finding the Fourth Proportional to 381,562.80, 526,580.56 and 211,799.76

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Solution

The fourth proportional to 381,562.80, 526,580.56 and 211,799.76 is: 292,296.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,562.80 : 526,580.56 = 211,799.76 : x
  2. Step 2: Convert to fraction form
    381,562.80/526,580.56 = 211,799.76/x
  3. Step 3: Cross multiply
    381,562.80x = 526,580.56 × 211,799.76
  4. Step 4: Simplify right side
    381,562.80x = 111,529,636,228.67
  5. Step 5: Solve for x
    x = 111,529,636,228.67/381,562.80
  6. Step 6: Final answer
    x = 292,296.93

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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.