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Finding the Fourth Proportional to 276,986.88, 382,156.92 and 169,444.80

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Solution

The fourth proportional to 276,986.88, 382,156.92 and 169,444.80 is: 233,781.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,986.88 : 382,156.92 = 169,444.80 : x
  2. Step 2: Convert to fraction form
    276,986.88/382,156.92 = 169,444.80/x
  3. Step 3: Cross multiply
    276,986.88x = 382,156.92 × 169,444.80
  4. Step 4: Simplify right side
    276,986.88x = 64,754,502,878.02
  5. Step 5: Solve for x
    x = 64,754,502,878.02/276,986.88
  6. Step 6: Final answer
    x = 233,781.84

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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.