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Finding the Fourth Proportional to 280,100.49, 386,571.35 and 159,259.88

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Solution

The fourth proportional to 280,100.49, 386,571.35 and 159,259.88 is: 219,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,100.49 : 386,571.35 = 159,259.88 : x
  2. Step 2: Convert to fraction form
    280,100.49/386,571.35 = 159,259.88/x
  3. Step 3: Cross multiply
    280,100.49x = 386,571.35 × 159,259.88
  4. Step 4: Simplify right side
    280,100.49x = 61,565,304,083.28
  5. Step 5: Solve for x
    x = 61,565,304,083.28/280,100.49
  6. Step 6: Final answer
    x = 219,797.21

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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.