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Finding the Fourth Proportional to 230,671.68, 318,326.40 and 130,068.96

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Solution

The fourth proportional to 230,671.68, 318,326.40 and 130,068.96 is: 179,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,671.68 : 318,326.40 = 130,068.96 : x
  2. Step 2: Convert to fraction form
    230,671.68/318,326.40 = 130,068.96/x
  3. Step 3: Cross multiply
    230,671.68x = 318,326.40 × 130,068.96
  4. Step 4: Simplify right side
    230,671.68x = 41,404,383,788.54
  5. Step 5: Solve for x
    x = 41,404,383,788.54/230,671.68
  6. Step 6: Final answer
    x = 179,494.87

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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.