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Finding the Fourth Proportional to 305,236.65, 457,487.85 and 112,957.65

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Solution

The fourth proportional to 305,236.65, 457,487.85 and 112,957.65 is: 169,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,236.65 : 457,487.85 = 112,957.65 : x
  2. Step 2: Convert to fraction form
    305,236.65/457,487.85 = 112,957.65/x
  3. Step 3: Cross multiply
    305,236.65x = 457,487.85 × 112,957.65
  4. Step 4: Simplify right side
    305,236.65x = 51,676,752,439.55
  5. Step 5: Solve for x
    x = 51,676,752,439.55/305,236.65
  6. Step 6: Final answer
    x = 169,300.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.