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Finding the Fourth Proportional to 280,571.04, 387,182.43 and 159,709.73

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Solution

The fourth proportional to 280,571.04, 387,182.43 and 159,709.73 is: 220,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,571.04 : 387,182.43 = 159,709.73 : x
  2. Step 2: Convert to fraction form
    280,571.04/387,182.43 = 159,709.73/x
  3. Step 3: Cross multiply
    280,571.04x = 387,182.43 × 159,709.73
  4. Step 4: Simplify right side
    280,571.04x = 61,836,799,420.13
  5. Step 5: Solve for x
    x = 61,836,799,420.13/280,571.04
  6. Step 6: Final answer
    x = 220,396.23

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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.