Home / 210,309.31-290,215.86-114,797.55

Finding the Fourth Proportional to 210,309.31, 290,215.86 and 114,797.55

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Solution

The fourth proportional to 210,309.31, 290,215.86 and 114,797.55 is: 158,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,309.31 : 290,215.86 = 114,797.55 : x
  2. Step 2: Convert to fraction form
    210,309.31/290,215.86 = 114,797.55/x
  3. Step 3: Cross multiply
    210,309.31x = 290,215.86 × 114,797.55
  4. Step 4: Simplify right side
    210,309.31x = 33,316,069,699.14
  5. Step 5: Solve for x
    x = 33,316,069,699.14/210,309.31
  6. Step 6: Final answer
    x = 158,414.62

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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.