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Finding the Fourth Proportional to 326,073.60, 488,505.60 and 185,414.40

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Solution

The fourth proportional to 326,073.60, 488,505.60 and 185,414.40 is: 277,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,073.60 : 488,505.60 = 185,414.40 : x
  2. Step 2: Convert to fraction form
    326,073.60/488,505.60 = 185,414.40/x
  3. Step 3: Cross multiply
    326,073.60x = 488,505.60 × 185,414.40
  4. Step 4: Simplify right side
    326,073.60x = 90,575,972,720.64
  5. Step 5: Solve for x
    x = 90,575,972,720.64/326,073.60
  6. Step 6: Final answer
    x = 277,777.69

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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.