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Finding the Fourth Proportional to 325,125.60, 487,623.60 and 156,645.60

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Solution

The fourth proportional to 325,125.60, 487,623.60 and 156,645.60 is: 234,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,125.60 : 487,623.60 = 156,645.60 : x
  2. Step 2: Convert to fraction form
    325,125.60/487,623.60 = 156,645.60/x
  3. Step 3: Cross multiply
    325,125.60x = 487,623.60 × 156,645.60
  4. Step 4: Simplify right side
    325,125.60x = 76,384,091,396.16
  5. Step 5: Solve for x
    x = 76,384,091,396.16/325,125.60
  6. Step 6: Final answer
    x = 234,937.18

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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.