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Finding the Fourth Proportional to 543,966.42, 815,949.48 and 169,989.42

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Solution

The fourth proportional to 543,966.42, 815,949.48 and 169,989.42 is: 254,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,966.42 : 815,949.48 = 169,989.42 : x
  2. Step 2: Convert to fraction form
    543,966.42/815,949.48 = 169,989.42/x
  3. Step 3: Cross multiply
    543,966.42x = 815,949.48 × 169,989.42
  4. Step 4: Simplify right side
    543,966.42x = 138,702,778,854.50
  5. Step 5: Solve for x
    x = 138,702,778,854.50/543,966.42
  6. Step 6: Final answer
    x = 254,984.08

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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.