Home / 216,429.75-298,705.86-131,530.41

Finding the Fourth Proportional to 216,429.75, 298,705.86 and 131,530.41

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Solution

The fourth proportional to 216,429.75, 298,705.86 and 131,530.41 is: 181,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,429.75 : 298,705.86 = 131,530.41 : x
  2. Step 2: Convert to fraction form
    216,429.75/298,705.86 = 131,530.41/x
  3. Step 3: Cross multiply
    216,429.75x = 298,705.86 × 131,530.41
  4. Step 4: Simplify right side
    216,429.75x = 39,288,904,235.20
  5. Step 5: Solve for x
    x = 39,288,904,235.20/216,429.75
  6. Step 6: Final answer
    x = 181,531.90

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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.