Home / 395,107.12-592,600.56-128,867.28

Finding the Fourth Proportional to 395,107.12, 592,600.56 and 128,867.28

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Solution

The fourth proportional to 395,107.12, 592,600.56 and 128,867.28 is: 193,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,107.12 : 592,600.56 = 128,867.28 : x
  2. Step 2: Convert to fraction form
    395,107.12/592,600.56 = 128,867.28/x
  3. Step 3: Cross multiply
    395,107.12x = 592,600.56 × 128,867.28
  4. Step 4: Simplify right side
    395,107.12x = 76,366,822,293.68
  5. Step 5: Solve for x
    x = 76,366,822,293.68/395,107.12
  6. Step 6: Final answer
    x = 193,281.31

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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.