Home / 342,784.12-473,036.16-189,819.28

Finding the Fourth Proportional to 342,784.12, 473,036.16 and 189,819.28

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Solution

The fourth proportional to 342,784.12, 473,036.16 and 189,819.28 is: 261,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,784.12 : 473,036.16 = 189,819.28 : x
  2. Step 2: Convert to fraction form
    342,784.12/473,036.16 = 189,819.28/x
  3. Step 3: Cross multiply
    342,784.12x = 473,036.16 × 189,819.28
  4. Step 4: Simplify right side
    342,784.12x = 89,791,383,305.16
  5. Step 5: Solve for x
    x = 89,791,383,305.16/342,784.12
  6. Step 6: Final answer
    x = 261,947.33

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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.