Home / 288,827.15-398,550.79-159,745.11

Finding the Fourth Proportional to 288,827.15, 398,550.79 and 159,745.11

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Solution

The fourth proportional to 288,827.15, 398,550.79 and 159,745.11 is: 220,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,827.15 : 398,550.79 = 159,745.11 : x
  2. Step 2: Convert to fraction form
    288,827.15/398,550.79 = 159,745.11/x
  3. Step 3: Cross multiply
    288,827.15x = 398,550.79 × 159,745.11
  4. Step 4: Simplify right side
    288,827.15x = 63,666,538,494.25
  5. Step 5: Solve for x
    x = 63,666,538,494.25/288,827.15
  6. Step 6: Final answer
    x = 220,431.28

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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.