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Finding the Fourth Proportional to 223,272.61, 334,919.86 and 90,136.26

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Solution

The fourth proportional to 223,272.61, 334,919.86 and 90,136.26 is: 135,208.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,272.61 : 334,919.86 = 90,136.26 : x
  2. Step 2: Convert to fraction form
    223,272.61/334,919.86 = 90,136.26/x
  3. Step 3: Cross multiply
    223,272.61x = 334,919.86 × 90,136.26
  4. Step 4: Simplify right side
    223,272.61x = 30,188,423,354.78
  5. Step 5: Solve for x
    x = 30,188,423,354.78/223,272.61
  6. Step 6: Final answer
    x = 135,208.81

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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.