Home / 213,624.10-320,436.15-178,891.30

Finding the Fourth Proportional to 213,624.10, 320,436.15 and 178,891.30

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Solution

The fourth proportional to 213,624.10, 320,436.15 and 178,891.30 is: 268,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,624.10 : 320,436.15 = 178,891.30 : x
  2. Step 2: Convert to fraction form
    213,624.10/320,436.15 = 178,891.30/x
  3. Step 3: Cross multiply
    213,624.10x = 320,436.15 × 178,891.30
  4. Step 4: Simplify right side
    213,624.10x = 57,323,239,440.50
  5. Step 5: Solve for x
    x = 57,323,239,440.50/213,624.10
  6. Step 6: Final answer
    x = 268,336.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.