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Finding the Fourth Proportional to 267,556.80, 401,394.40 and 90,058

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Solution

The fourth proportional to 267,556.80, 401,394.40 and 90,058 is: 135,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,556.80 : 401,394.40 = 90,058 : x
  2. Step 2: Convert to fraction form
    267,556.80/401,394.40 = 90,058/x
  3. Step 3: Cross multiply
    267,556.80x = 401,394.40 × 90,058
  4. Step 4: Simplify right side
    267,556.80x = 36,148,776,875.20
  5. Step 5: Solve for x
    x = 36,148,776,875.20/267,556.80
  6. Step 6: Final answer
    x = 135,106.93

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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.