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Finding the Fourth Proportional to 250,459.66, 345,633.45 and 135,741.09

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Solution

The fourth proportional to 250,459.66, 345,633.45 and 135,741.09 is: 187,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,459.66 : 345,633.45 = 135,741.09 : x
  2. Step 2: Convert to fraction form
    250,459.66/345,633.45 = 135,741.09/x
  3. Step 3: Cross multiply
    250,459.66x = 345,633.45 × 135,741.09
  4. Step 4: Simplify right side
    250,459.66x = 46,916,660,470.90
  5. Step 5: Solve for x
    x = 46,916,660,470.90/250,459.66
  6. Step 6: Final answer
    x = 187,322.22

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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.