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Finding the Fourth Proportional to 612,243.59, 918,365.55 and 179,961.12

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Solution

The fourth proportional to 612,243.59, 918,365.55 and 179,961.12 is: 269,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,243.59 : 918,365.55 = 179,961.12 : x
  2. Step 2: Convert to fraction form
    612,243.59/918,365.55 = 179,961.12/x
  3. Step 3: Cross multiply
    612,243.59x = 918,365.55 × 179,961.12
  4. Step 4: Simplify right side
    612,243.59x = 165,270,092,947.42
  5. Step 5: Solve for x
    x = 165,270,092,947.42/612,243.59
  6. Step 6: Final answer
    x = 269,941.73

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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.