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Finding the Fourth Proportional to 230,714.28, 318,385.68 and 130,112.28

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Solution

The fourth proportional to 230,714.28, 318,385.68 and 130,112.28 is: 179,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,714.28 : 318,385.68 = 130,112.28 : x
  2. Step 2: Convert to fraction form
    230,714.28/318,385.68 = 130,112.28/x
  3. Step 3: Cross multiply
    230,714.28x = 318,385.68 × 130,112.28
  4. Step 4: Simplify right side
    230,714.28x = 41,425,886,744.15
  5. Step 5: Solve for x
    x = 41,425,886,744.15/230,714.28
  6. Step 6: Final answer
    x = 179,554.93

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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.