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Finding the Fourth Proportional to 230,702.40, 318,314.80 and 130,080.96

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Solution

The fourth proportional to 230,702.40, 318,314.80 and 130,080.96 is: 179,480.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,702.40 : 318,314.80 = 130,080.96 : x
  2. Step 2: Convert to fraction form
    230,702.40/318,314.80 = 130,080.96/x
  3. Step 3: Cross multiply
    230,702.40x = 318,314.80 × 130,080.96
  4. Step 4: Simplify right side
    230,702.40x = 41,406,694,766.21
  5. Step 5: Solve for x
    x = 41,406,694,766.21/230,702.40
  6. Step 6: Final answer
    x = 179,480.99

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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.