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Finding the Fourth Proportional to 370,392.74, 511,142.10 and 200,626.94

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Solution

The fourth proportional to 370,392.74, 511,142.10 and 200,626.94 is: 276,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,392.74 : 511,142.10 = 200,626.94 : x
  2. Step 2: Convert to fraction form
    370,392.74/511,142.10 = 200,626.94/x
  3. Step 3: Cross multiply
    370,392.74x = 511,142.10 × 200,626.94
  4. Step 4: Simplify right side
    370,392.74x = 102,548,875,428.17
  5. Step 5: Solve for x
    x = 102,548,875,428.17/370,392.74
  6. Step 6: Final answer
    x = 276,865.24

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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.