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Finding the Fourth Proportional to 543,946.56, 815,919.68 and 169,969.56

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Solution

The fourth proportional to 543,946.56, 815,919.68 and 169,969.56 is: 254,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,946.56 : 815,919.68 = 169,969.56 : x
  2. Step 2: Convert to fraction form
    543,946.56/815,919.68 = 169,969.56/x
  3. Step 3: Cross multiply
    543,946.56x = 815,919.68 × 169,969.56
  4. Step 4: Simplify right side
    543,946.56x = 138,681,506,370.17
  5. Step 5: Solve for x
    x = 138,681,506,370.17/543,946.56
  6. Step 6: Final answer
    x = 254,954.29

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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.