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Finding the Fourth Proportional to 615,169.89, 922,749.30 and 194,445.90

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Solution

The fourth proportional to 615,169.89, 922,749.30 and 194,445.90 is: 291,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,169.89 : 922,749.30 = 194,445.90 : x
  2. Step 2: Convert to fraction form
    615,169.89/922,749.30 = 194,445.90/x
  3. Step 3: Cross multiply
    615,169.89x = 922,749.30 × 194,445.90
  4. Step 4: Simplify right side
    615,169.89x = 179,424,818,112.87
  5. Step 5: Solve for x
    x = 179,424,818,112.87/615,169.89
  6. Step 6: Final answer
    x = 291,667.10

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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.