Home / 231,155.24-318,970.44-158,620.32

Finding the Fourth Proportional to 231,155.24, 318,970.44 and 158,620.32

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Solution

The fourth proportional to 231,155.24, 318,970.44 and 158,620.32 is: 218,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,155.24 : 318,970.44 = 158,620.32 : x
  2. Step 2: Convert to fraction form
    231,155.24/318,970.44 = 158,620.32/x
  3. Step 3: Cross multiply
    231,155.24x = 318,970.44 × 158,620.32
  4. Step 4: Simplify right side
    231,155.24x = 50,595,193,263.34
  5. Step 5: Solve for x
    x = 50,595,193,263.34/231,155.24
  6. Step 6: Final answer
    x = 218,879.72

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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.