Home / 210,785.60-290,884.20-115,301.12

Finding the Fourth Proportional to 210,785.60, 290,884.20 and 115,301.12

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Solution

The fourth proportional to 210,785.60, 290,884.20 and 115,301.12 is: 159,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,785.60 : 290,884.20 = 115,301.12 : x
  2. Step 2: Convert to fraction form
    210,785.60/290,884.20 = 115,301.12/x
  3. Step 3: Cross multiply
    210,785.60x = 290,884.20 × 115,301.12
  4. Step 4: Simplify right side
    210,785.60x = 33,539,274,050.30
  5. Step 5: Solve for x
    x = 33,539,274,050.30/210,785.60
  6. Step 6: Final answer
    x = 159,115.58

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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.