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Finding the Fourth Proportional to 325,700.60, 488,486.10 and 157,220.60

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Solution

The fourth proportional to 325,700.60, 488,486.10 and 157,220.60 is: 235,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,700.60 : 488,486.10 = 157,220.60 : x
  2. Step 2: Convert to fraction form
    325,700.60/488,486.10 = 157,220.60/x
  3. Step 3: Cross multiply
    325,700.60x = 488,486.10 × 157,220.60
  4. Step 4: Simplify right side
    325,700.60x = 76,800,077,733.66
  5. Step 5: Solve for x
    x = 76,800,077,733.66/325,700.60
  6. Step 6: Final answer
    x = 235,799.62

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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.