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Finding the Fourth Proportional to 276,798.45, 382,010.13 and 169,439.43

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Solution

The fourth proportional to 276,798.45, 382,010.13 and 169,439.43 is: 233,843.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,798.45 : 382,010.13 = 169,439.43 : x
  2. Step 2: Convert to fraction form
    276,798.45/382,010.13 = 169,439.43/x
  3. Step 3: Cross multiply
    276,798.45x = 382,010.13 × 169,439.43
  4. Step 4: Simplify right side
    276,798.45x = 64,727,578,681.43
  5. Step 5: Solve for x
    x = 64,727,578,681.43/276,798.45
  6. Step 6: Final answer
    x = 233,843.72

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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.