Home / 314,725.20-472,284.64-127,736.70

Finding the Fourth Proportional to 314,725.20, 472,284.64 and 127,736.70

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Solution

The fourth proportional to 314,725.20, 472,284.64 and 127,736.70 is: 191,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,725.20 : 472,284.64 = 127,736.70 : x
  2. Step 2: Convert to fraction form
    314,725.20/472,284.64 = 127,736.70/x
  3. Step 3: Cross multiply
    314,725.20x = 472,284.64 × 127,736.70
  4. Step 4: Simplify right side
    314,725.20x = 60,328,081,374.29
  5. Step 5: Solve for x
    x = 60,328,081,374.29/314,725.20
  6. Step 6: Final answer
    x = 191,684.94

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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.