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Finding the Fourth Proportional to 267,663.52, 401,430 and 90,124.32

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Solution

The fourth proportional to 267,663.52, 401,430 and 90,124.32 is: 135,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,663.52 : 401,430 = 90,124.32 : x
  2. Step 2: Convert to fraction form
    267,663.52/401,430 = 90,124.32/x
  3. Step 3: Cross multiply
    267,663.52x = 401,430 × 90,124.32
  4. Step 4: Simplify right side
    267,663.52x = 36,178,605,777.60
  5. Step 5: Solve for x
    x = 36,178,605,777.60/267,663.52
  6. Step 6: Final answer
    x = 135,164.50

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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.