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Finding the Fourth Proportional to 243,126.84, 335,250.54 and 158,086.20

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Solution

The fourth proportional to 243,126.84, 335,250.54 and 158,086.20 is: 217,986.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,126.84 : 335,250.54 = 158,086.20 : x
  2. Step 2: Convert to fraction form
    243,126.84/335,250.54 = 158,086.20/x
  3. Step 3: Cross multiply
    243,126.84x = 335,250.54 × 158,086.20
  4. Step 4: Simplify right side
    243,126.84x = 52,998,483,916.55
  5. Step 5: Solve for x
    x = 52,998,483,916.55/243,126.84
  6. Step 6: Final answer
    x = 217,986.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.