Home / 321,311.34-443,402.91-178,070.13

Finding the Fourth Proportional to 321,311.34, 443,402.91 and 178,070.13

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Solution

The fourth proportional to 321,311.34, 443,402.91 and 178,070.13 is: 245,733.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,311.34 : 443,402.91 = 178,070.13 : x
  2. Step 2: Convert to fraction form
    321,311.34/443,402.91 = 178,070.13/x
  3. Step 3: Cross multiply
    321,311.34x = 443,402.91 × 178,070.13
  4. Step 4: Simplify right side
    321,311.34x = 78,956,813,826.08
  5. Step 5: Solve for x
    x = 78,956,813,826.08/321,311.34
  6. Step 6: Final answer
    x = 245,733.04

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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.