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Finding the Fourth Proportional to 381,873.60, 526,866.96 and 220,669.92

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Solution

The fourth proportional to 381,873.60, 526,866.96 and 220,669.92 is: 304,455.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,873.60 : 526,866.96 = 220,669.92 : x
  2. Step 2: Convert to fraction form
    381,873.60/526,866.96 = 220,669.92/x
  3. Step 3: Cross multiply
    381,873.60x = 526,866.96 × 220,669.92
  4. Step 4: Simplify right side
    381,873.60x = 116,263,689,913.84
  5. Step 5: Solve for x
    x = 116,263,689,913.84/381,873.60
  6. Step 6: Final answer
    x = 304,455.95

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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.