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Finding the Fourth Proportional to 332,380.72, 498,602.44 and 257,584.64

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Solution

The fourth proportional to 332,380.72, 498,602.44 and 257,584.64 is: 386,401.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,380.72 : 498,602.44 = 257,584.64 : x
  2. Step 2: Convert to fraction form
    332,380.72/498,602.44 = 257,584.64/x
  3. Step 3: Cross multiply
    332,380.72x = 498,602.44 × 257,584.64
  4. Step 4: Simplify right side
    332,380.72x = 128,432,330,010.52
  5. Step 5: Solve for x
    x = 128,432,330,010.52/332,380.72
  6. Step 6: Final answer
    x = 386,401.26

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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.