Home / 215,317.23-322,987.99-65,562.40

Finding the Fourth Proportional to 215,317.23, 322,987.99 and 65,562.40

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Solution

The fourth proportional to 215,317.23, 322,987.99 and 65,562.40 is: 98,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,317.23 : 322,987.99 = 65,562.40 : x
  2. Step 2: Convert to fraction form
    215,317.23/322,987.99 = 65,562.40/x
  3. Step 3: Cross multiply
    215,317.23x = 322,987.99 × 65,562.40
  4. Step 4: Simplify right side
    215,317.23x = 21,175,867,795.58
  5. Step 5: Solve for x
    x = 21,175,867,795.58/215,317.23
  6. Step 6: Final answer
    x = 98,347.30

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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.