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Finding the Fourth Proportional to 349,488.70, 481,829.87 and 228,421.85

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Solution

The fourth proportional to 349,488.70, 481,829.87 and 228,421.85 is: 314,918.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,488.70 : 481,829.87 = 228,421.85 : x
  2. Step 2: Convert to fraction form
    349,488.70/481,829.87 = 228,421.85/x
  3. Step 3: Cross multiply
    349,488.70x = 481,829.87 × 228,421.85
  4. Step 4: Simplify right side
    349,488.70x = 110,060,468,452.57
  5. Step 5: Solve for x
    x = 110,060,468,452.57/349,488.70
  6. Step 6: Final answer
    x = 314,918.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.