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Finding the Fourth Proportional to 230,672.36, 318,327.90 and 130,070.36

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Solution

The fourth proportional to 230,672.36, 318,327.90 and 130,070.36 is: 179,497.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,672.36 : 318,327.90 = 130,070.36 : x
  2. Step 2: Convert to fraction form
    230,672.36/318,327.90 = 130,070.36/x
  3. Step 3: Cross multiply
    230,672.36x = 318,327.90 × 130,070.36
  4. Step 4: Simplify right side
    230,672.36x = 41,405,024,551.04
  5. Step 5: Solve for x
    x = 41,405,024,551.04/230,672.36
  6. Step 6: Final answer
    x = 179,497.12

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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.