Home / 318,338.67-439,488.94-211,054.02

Finding the Fourth Proportional to 318,338.67, 439,488.94 and 211,054.02

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Solution

The fourth proportional to 318,338.67, 439,488.94 and 211,054.02 is: 291,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,338.67 : 439,488.94 = 211,054.02 : x
  2. Step 2: Convert to fraction form
    318,338.67/439,488.94 = 211,054.02/x
  3. Step 3: Cross multiply
    318,338.67x = 439,488.94 × 211,054.02
  4. Step 4: Simplify right side
    318,338.67x = 92,755,907,532.54
  5. Step 5: Solve for x
    x = 92,755,907,532.54/318,338.67
  6. Step 6: Final answer
    x = 291,374.93

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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.