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Finding the Fourth Proportional to 276,987.88, 382,158.30 and 169,445.80

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Solution

The fourth proportional to 276,987.88, 382,158.30 and 169,445.80 is: 233,783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,987.88 : 382,158.30 = 169,445.80 : x
  2. Step 2: Convert to fraction form
    276,987.88/382,158.30 = 169,445.80/x
  3. Step 3: Cross multiply
    276,987.88x = 382,158.30 × 169,445.80
  4. Step 4: Simplify right side
    276,987.88x = 64,755,118,870.14
  5. Step 5: Solve for x
    x = 64,755,118,870.14/276,987.88
  6. Step 6: Final answer
    x = 233,783.22

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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.