Home / 229,555.20-316,776.96-128,951.04

Finding the Fourth Proportional to 229,555.20, 316,776.96 and 128,951.04

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Solution

The fourth proportional to 229,555.20, 316,776.96 and 128,951.04 is: 177,947.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,555.20 : 316,776.96 = 128,951.04 : x
  2. Step 2: Convert to fraction form
    229,555.20/316,776.96 = 128,951.04/x
  3. Step 3: Cross multiply
    229,555.20x = 316,776.96 × 128,951.04
  4. Step 4: Simplify right side
    229,555.20x = 40,848,718,440.04
  5. Step 5: Solve for x
    x = 40,848,718,440.04/229,555.20
  6. Step 6: Final answer
    x = 177,947.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.