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Finding the Fourth Proportional to 543,947.96, 815,921.79 and 169,970.96

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Solution

The fourth proportional to 543,947.96, 815,921.79 and 169,970.96 is: 254,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,947.96 : 815,921.79 = 169,970.96 : x
  2. Step 2: Convert to fraction form
    543,947.96/815,921.79 = 169,970.96/x
  3. Step 3: Cross multiply
    543,947.96x = 815,921.79 × 169,970.96
  4. Step 4: Simplify right side
    543,947.96x = 138,683,012,289.72
  5. Step 5: Solve for x
    x = 138,683,012,289.72/543,947.96
  6. Step 6: Final answer
    x = 254,956.40

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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.