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Finding the Fourth Proportional to 250,126.82, 345,174.64 and 135,404.90

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Solution

The fourth proportional to 250,126.82, 345,174.64 and 135,404.90 is: 186,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,126.82 : 345,174.64 = 135,404.90 : x
  2. Step 2: Convert to fraction form
    250,126.82/345,174.64 = 135,404.90/x
  3. Step 3: Cross multiply
    250,126.82x = 345,174.64 × 135,404.90
  4. Step 4: Simplify right side
    250,126.82x = 46,738,335,547.35
  5. Step 5: Solve for x
    x = 46,738,335,547.35/250,126.82
  6. Step 6: Final answer
    x = 186,858.56

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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.