Home / 288,977.42-398,789.50-159,925.28

Finding the Fourth Proportional to 288,977.42, 398,789.50 and 159,925.28

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Solution

The fourth proportional to 288,977.42, 398,789.50 and 159,925.28 is: 220,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,977.42 : 398,789.50 = 159,925.28 : x
  2. Step 2: Convert to fraction form
    288,977.42/398,789.50 = 159,925.28/x
  3. Step 3: Cross multiply
    288,977.42x = 398,789.50 × 159,925.28
  4. Step 4: Simplify right side
    288,977.42x = 63,776,522,448.56
  5. Step 5: Solve for x
    x = 63,776,522,448.56/288,977.42
  6. Step 6: Final answer
    x = 220,697.25

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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.