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Finding the Fourth Proportional to 230,316.15, 317,832.08 and 129,714.15

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Solution

The fourth proportional to 230,316.15, 317,832.08 and 129,714.15 is: 179,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,316.15 : 317,832.08 = 129,714.15 : x
  2. Step 2: Convert to fraction form
    230,316.15/317,832.08 = 129,714.15/x
  3. Step 3: Cross multiply
    230,316.15x = 317,832.08 × 129,714.15
  4. Step 4: Simplify right side
    230,316.15x = 41,227,317,451.36
  5. Step 5: Solve for x
    x = 41,227,317,451.36/230,316.15
  6. Step 6: Final answer
    x = 179,003.15

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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.