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Finding the Fourth Proportional to 370,423.28, 511,186.56 and 200,657.44

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Solution

The fourth proportional to 370,423.28, 511,186.56 and 200,657.44 is: 276,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,423.28 : 511,186.56 = 200,657.44 : x
  2. Step 2: Convert to fraction form
    370,423.28/511,186.56 = 200,657.44/x
  3. Step 3: Cross multiply
    370,423.28x = 511,186.56 × 200,657.44
  4. Step 4: Simplify right side
    370,423.28x = 102,573,386,492.01
  5. Step 5: Solve for x
    x = 102,573,386,492.01/370,423.28
  6. Step 6: Final answer
    x = 276,908.59

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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.