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Finding the Fourth Proportional to 339,479.69, 468,287.10 and 211,933.85

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Solution

The fourth proportional to 339,479.69, 468,287.10 and 211,933.85 is: 292,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,479.69 : 468,287.10 = 211,933.85 : x
  2. Step 2: Convert to fraction form
    339,479.69/468,287.10 = 211,933.85/x
  3. Step 3: Cross multiply
    339,479.69x = 468,287.10 × 211,933.85
  4. Step 4: Simplify right side
    339,479.69x = 99,245,885,666.90
  5. Step 5: Solve for x
    x = 99,245,885,666.90/339,479.69
  6. Step 6: Final answer
    x = 292,347.05

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1.5x scale

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.