Home / 312,921.60-469,273.05-163,112.10

Finding the Fourth Proportional to 312,921.60, 469,273.05 and 163,112.10

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Solution

The fourth proportional to 312,921.60, 469,273.05 and 163,112.10 is: 244,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,921.60 : 469,273.05 = 163,112.10 : x
  2. Step 2: Convert to fraction form
    312,921.60/469,273.05 = 163,112.10/x
  3. Step 3: Cross multiply
    312,921.60x = 469,273.05 × 163,112.10
  4. Step 4: Simplify right side
    312,921.60x = 76,544,112,658.91
  5. Step 5: Solve for x
    x = 76,544,112,658.91/312,921.60
  6. Step 6: Final answer
    x = 244,611.15

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1.5x scale

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.