Home / 312,845.04-469,258.38-76,184.28

Finding the Fourth Proportional to 312,845.04, 469,258.38 and 76,184.28

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Solution

The fourth proportional to 312,845.04, 469,258.38 and 76,184.28 is: 114,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,845.04 : 469,258.38 = 76,184.28 : x
  2. Step 2: Convert to fraction form
    312,845.04/469,258.38 = 76,184.28/x
  3. Step 3: Cross multiply
    312,845.04x = 469,258.38 × 76,184.28
  4. Step 4: Simplify right side
    312,845.04x = 35,750,111,814.27
  5. Step 5: Solve for x
    x = 35,750,111,814.27/312,845.04
  6. Step 6: Final answer
    x = 114,274.18

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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.