Home / 391,263.36-539,963.67-219,171.30

Finding the Fourth Proportional to 391,263.36, 539,963.67 and 219,171.30

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Solution

The fourth proportional to 391,263.36, 539,963.67 and 219,171.30 is: 302,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,263.36 : 539,963.67 = 219,171.30 : x
  2. Step 2: Convert to fraction form
    391,263.36/539,963.67 = 219,171.30/x
  3. Step 3: Cross multiply
    391,263.36x = 539,963.67 × 219,171.30
  4. Step 4: Simplify right side
    391,263.36x = 118,344,539,506.67
  5. Step 5: Solve for x
    x = 118,344,539,506.67/391,263.36
  6. Step 6: Final answer
    x = 302,467.73

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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.