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Finding the Fourth Proportional to 615,067.30, 922,730.55 and 194,385.70

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Solution

The fourth proportional to 615,067.30, 922,730.55 and 194,385.70 is: 291,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,067.30 : 922,730.55 = 194,385.70 : x
  2. Step 2: Convert to fraction form
    615,067.30/922,730.55 = 194,385.70/x
  3. Step 3: Cross multiply
    615,067.30x = 922,730.55 × 194,385.70
  4. Step 4: Simplify right side
    615,067.30x = 179,365,623,873.14
  5. Step 5: Solve for x
    x = 179,365,623,873.14/615,067.30
  6. Step 6: Final answer
    x = 291,619.51

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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.