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Finding the Fourth Proportional to 325,066.20, 487,599.30 and 207,259.80

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Solution

The fourth proportional to 325,066.20, 487,599.30 and 207,259.80 is: 310,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,066.20 : 487,599.30 = 207,259.80 : x
  2. Step 2: Convert to fraction form
    325,066.20/487,599.30 = 207,259.80/x
  3. Step 3: Cross multiply
    325,066.20x = 487,599.30 × 207,259.80
  4. Step 4: Simplify right side
    325,066.20x = 101,059,733,398.14
  5. Step 5: Solve for x
    x = 101,059,733,398.14/325,066.20
  6. Step 6: Final answer
    x = 310,889.70

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Similar ratio
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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.