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Finding the Fourth Proportional to 615,197.08, 922,231.86 and 215,620.03

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Solution

The fourth proportional to 615,197.08, 922,231.86 and 215,620.03 is: 323,232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,197.08 : 922,231.86 = 215,620.03 : x
  2. Step 2: Convert to fraction form
    615,197.08/922,231.86 = 215,620.03/x
  3. Step 3: Cross multiply
    615,197.08x = 922,231.86 × 215,620.03
  4. Step 4: Simplify right side
    615,197.08x = 198,851,661,320.16
  5. Step 5: Solve for x
    x = 198,851,661,320.16/615,197.08
  6. Step 6: Final answer
    x = 323,232.45

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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.