Home / 210,759.54-290,854.32-115,272.70

Finding the Fourth Proportional to 210,759.54, 290,854.32 and 115,272.70

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Solution

The fourth proportional to 210,759.54, 290,854.32 and 115,272.70 is: 159,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,759.54 : 290,854.32 = 115,272.70 : x
  2. Step 2: Convert to fraction form
    210,759.54/290,854.32 = 115,272.70/x
  3. Step 3: Cross multiply
    210,759.54x = 290,854.32 × 115,272.70
  4. Step 4: Simplify right side
    210,759.54x = 33,527,562,773.06
  5. Step 5: Solve for x
    x = 33,527,562,773.06/210,759.54
  6. Step 6: Final answer
    x = 159,079.69

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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.