Home / 210,850.18-290,968.24-115,357.66

Finding the Fourth Proportional to 210,850.18, 290,968.24 and 115,357.66

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Solution

The fourth proportional to 210,850.18, 290,968.24 and 115,357.66 is: 159,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,850.18 : 290,968.24 = 115,357.66 : x
  2. Step 2: Convert to fraction form
    210,850.18/290,968.24 = 115,357.66/x
  3. Step 3: Cross multiply
    210,850.18x = 290,968.24 × 115,357.66
  4. Step 4: Simplify right side
    210,850.18x = 33,565,415,300.72
  5. Step 5: Solve for x
    x = 33,565,415,300.72/210,850.18
  6. Step 6: Final answer
    x = 159,190.83

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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.