Home / 210,599.32-290,646.96-115,120.18

Finding the Fourth Proportional to 210,599.32, 290,646.96 and 115,120.18

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Solution

The fourth proportional to 210,599.32, 290,646.96 and 115,120.18 is: 158,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,599.32 : 290,646.96 = 115,120.18 : x
  2. Step 2: Convert to fraction form
    210,599.32/290,646.96 = 115,120.18/x
  3. Step 3: Cross multiply
    210,599.32x = 290,646.96 × 115,120.18
  4. Step 4: Simplify right side
    210,599.32x = 33,459,330,351.65
  5. Step 5: Solve for x
    x = 33,459,330,351.65/210,599.32
  6. Step 6: Final answer
    x = 158,876.73

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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.