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Finding the Fourth Proportional to 283,987.70, 426,856.35 and 268,241.30

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Solution

The fourth proportional to 283,987.70, 426,856.35 and 268,241.30 is: 403,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,987.70 : 426,856.35 = 268,241.30 : x
  2. Step 2: Convert to fraction form
    283,987.70/426,856.35 = 268,241.30/x
  3. Step 3: Cross multiply
    283,987.70x = 426,856.35 × 268,241.30
  4. Step 4: Simplify right side
    283,987.70x = 114,500,502,237.26
  5. Step 5: Solve for x
    x = 114,500,502,237.26/283,987.70
  6. Step 6: Final answer
    x = 403,188.24

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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.