Home / 210,841.12-290,980.77-115,362.16

Finding the Fourth Proportional to 210,841.12, 290,980.77 and 115,362.16

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Solution

The fourth proportional to 210,841.12, 290,980.77 and 115,362.16 is: 159,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,841.12 : 290,980.77 = 115,362.16 : x
  2. Step 2: Convert to fraction form
    210,841.12/290,980.77 = 115,362.16/x
  3. Step 3: Cross multiply
    210,841.12x = 290,980.77 × 115,362.16
  4. Step 4: Simplify right side
    210,841.12x = 33,568,170,145.66
  5. Step 5: Solve for x
    x = 33,568,170,145.66/210,841.12
  6. Step 6: Final answer
    x = 159,210.74

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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.