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Finding the Fourth Proportional to 370,384.49, 511,130.61 and 200,618.61

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Solution

The fourth proportional to 370,384.49, 511,130.61 and 200,618.61 is: 276,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,384.49 : 511,130.61 = 200,618.61 : x
  2. Step 2: Convert to fraction form
    370,384.49/511,130.61 = 200,618.61/x
  3. Step 3: Cross multiply
    370,384.49x = 511,130.61 × 200,618.61
  4. Step 4: Simplify right side
    370,384.49x = 102,542,315,466.82
  5. Step 5: Solve for x
    x = 102,542,315,466.82/370,384.49
  6. Step 6: Final answer
    x = 276,853.70

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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.