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Finding the Fourth Proportional to 330,957.70, 456,723.60 and 180,055.78

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Solution

The fourth proportional to 330,957.70, 456,723.60 and 180,055.78 is: 248,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,957.70 : 456,723.60 = 180,055.78 : x
  2. Step 2: Convert to fraction form
    330,957.70/456,723.60 = 180,055.78/x
  3. Step 3: Cross multiply
    330,957.70x = 456,723.60 × 180,055.78
  4. Step 4: Simplify right side
    330,957.70x = 82,235,724,042.41
  5. Step 5: Solve for x
    x = 82,235,724,042.41/330,957.70
  6. Step 6: Final answer
    x = 248,478.05

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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.