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Finding the Fourth Proportional to 349,794.60, 524,087.10 and 162,421.80

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Solution

The fourth proportional to 349,794.60, 524,087.10 and 162,421.80 is: 243,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,794.60 : 524,087.10 = 162,421.80 : x
  2. Step 2: Convert to fraction form
    349,794.60/524,087.10 = 162,421.80/x
  3. Step 3: Cross multiply
    349,794.60x = 524,087.10 × 162,421.80
  4. Step 4: Simplify right side
    349,794.60x = 85,123,170,138.78
  5. Step 5: Solve for x
    x = 85,123,170,138.78/349,794.60
  6. Step 6: Final answer
    x = 243,351.87

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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.