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Finding the Fourth Proportional to 250,261.89, 375,429.45 and 72,745.83

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Solution

The fourth proportional to 250,261.89, 375,429.45 and 72,745.83 is: 109,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,261.89 : 375,429.45 = 72,745.83 : x
  2. Step 2: Convert to fraction form
    250,261.89/375,429.45 = 72,745.83/x
  3. Step 3: Cross multiply
    250,261.89x = 375,429.45 × 72,745.83
  4. Step 4: Simplify right side
    250,261.89x = 27,310,926,946.69
  5. Step 5: Solve for x
    x = 27,310,926,946.69/250,261.89
  6. Step 6: Final answer
    x = 109,129.39

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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.