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Finding the Fourth Proportional to 343,728.76, 474,402.72 and 200,488.84

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Solution

The fourth proportional to 343,728.76, 474,402.72 and 200,488.84 is: 276,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,728.76 : 474,402.72 = 200,488.84 : x
  2. Step 2: Convert to fraction form
    343,728.76/474,402.72 = 200,488.84/x
  3. Step 3: Cross multiply
    343,728.76x = 474,402.72 × 200,488.84
  4. Step 4: Simplify right side
    343,728.76x = 95,112,449,839.64
  5. Step 5: Solve for x
    x = 95,112,449,839.64/343,728.76
  6. Step 6: Final answer
    x = 276,707.86

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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.