Home / 288,932.15-398,718.70-159,867.26

Finding the Fourth Proportional to 288,932.15, 398,718.70 and 159,867.26

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Solution

The fourth proportional to 288,932.15, 398,718.70 and 159,867.26 is: 220,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,932.15 : 398,718.70 = 159,867.26 : x
  2. Step 2: Convert to fraction form
    288,932.15/398,718.70 = 159,867.26/x
  3. Step 3: Cross multiply
    288,932.15x = 398,718.70 × 159,867.26
  4. Step 4: Simplify right side
    288,932.15x = 63,742,066,676.89
  5. Step 5: Solve for x
    x = 63,742,066,676.89/288,932.15
  6. Step 6: Final answer
    x = 220,612.58

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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.