Home / 312,984.20-469,358.40-113,255.18

Finding the Fourth Proportional to 312,984.20, 469,358.40 and 113,255.18

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Solution

The fourth proportional to 312,984.20, 469,358.40 and 113,255.18 is: 169,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,984.20 : 469,358.40 = 113,255.18 : x
  2. Step 2: Convert to fraction form
    312,984.20/469,358.40 = 113,255.18/x
  3. Step 3: Cross multiply
    312,984.20x = 469,358.40 × 113,255.18
  4. Step 4: Simplify right side
    312,984.20x = 53,157,270,076.51
  5. Step 5: Solve for x
    x = 53,157,270,076.51/312,984.20
  6. Step 6: Final answer
    x = 169,840.11

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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.