Home / 235,979.40-353,385.90-156,664.20

Finding the Fourth Proportional to 235,979.40, 353,385.90 and 156,664.20

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Solution

The fourth proportional to 235,979.40, 353,385.90 and 156,664.20 is: 234,609.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,979.40 : 353,385.90 = 156,664.20 : x
  2. Step 2: Convert to fraction form
    235,979.40/353,385.90 = 156,664.20/x
  3. Step 3: Cross multiply
    235,979.40x = 353,385.90 × 156,664.20
  4. Step 4: Simplify right side
    235,979.40x = 55,362,919,314.78
  5. Step 5: Solve for x
    x = 55,362,919,314.78/235,979.40
  6. Step 6: Final answer
    x = 234,609.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.