Home / 288,928.37-398,711.49-159,867.09

Finding the Fourth Proportional to 288,928.37, 398,711.49 and 159,867.09

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Solution

The fourth proportional to 288,928.37, 398,711.49 and 159,867.09 is: 220,611.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,928.37 : 398,711.49 = 159,867.09 : x
  2. Step 2: Convert to fraction form
    288,928.37/398,711.49 = 159,867.09/x
  3. Step 3: Cross multiply
    288,928.37x = 398,711.49 × 159,867.09
  4. Step 4: Simplify right side
    288,928.37x = 63,740,845,655.86
  5. Step 5: Solve for x
    x = 63,740,845,655.86/288,928.37
  6. Step 6: Final answer
    x = 220,611.24

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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.