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Finding the Fourth Proportional to 267,987.51, 401,455.70 and 155,431.26

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Solution

The fourth proportional to 267,987.51, 401,455.70 and 155,431.26 is: 232,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,987.51 : 401,455.70 = 155,431.26 : x
  2. Step 2: Convert to fraction form
    267,987.51/401,455.70 = 155,431.26/x
  3. Step 3: Cross multiply
    267,987.51x = 401,455.70 × 155,431.26
  4. Step 4: Simplify right side
    267,987.51x = 62,398,764,508.03
  5. Step 5: Solve for x
    x = 62,398,764,508.03/267,987.51
  6. Step 6: Final answer
    x = 232,842.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.