Home / 210,856.96-290,980.02-115,362.28

Finding the Fourth Proportional to 210,856.96, 290,980.02 and 115,362.28

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Solution

The fourth proportional to 210,856.96, 290,980.02 and 115,362.28 is: 159,198.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,856.96 : 290,980.02 = 115,362.28 : x
  2. Step 2: Convert to fraction form
    210,856.96/290,980.02 = 115,362.28/x
  3. Step 3: Cross multiply
    210,856.96x = 290,980.02 × 115,362.28
  4. Step 4: Simplify right side
    210,856.96x = 33,568,118,541.65
  5. Step 5: Solve for x
    x = 33,568,118,541.65/210,856.96
  6. Step 6: Final answer
    x = 159,198.53

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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.