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Finding the Fourth Proportional to 230,754.92, 318,457.74 and 128,800.22

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Solution

The fourth proportional to 230,754.92, 318,457.74 and 128,800.22 is: 177,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,754.92 : 318,457.74 = 128,800.22 : x
  2. Step 2: Convert to fraction form
    230,754.92/318,457.74 = 128,800.22/x
  3. Step 3: Cross multiply
    230,754.92x = 318,457.74 × 128,800.22
  4. Step 4: Simplify right side
    230,754.92x = 41,017,425,380.41
  5. Step 5: Solve for x
    x = 41,017,425,380.41/230,754.92
  6. Step 6: Final answer
    x = 177,753.20

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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.