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Finding the Fourth Proportional to 330,664.64, 456,352.88 and 187,409.30

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Solution

The fourth proportional to 330,664.64, 456,352.88 and 187,409.30 is: 258,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,664.64 : 456,352.88 = 187,409.30 : x
  2. Step 2: Convert to fraction form
    330,664.64/456,352.88 = 187,409.30/x
  3. Step 3: Cross multiply
    330,664.64x = 456,352.88 × 187,409.30
  4. Step 4: Simplify right side
    330,664.64x = 85,524,773,793.78
  5. Step 5: Solve for x
    x = 85,524,773,793.78/330,664.64
  6. Step 6: Final answer
    x = 258,645.05

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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.