Home / 215,643.24-323,333.10-103,357.80

Finding the Fourth Proportional to 215,643.24, 323,333.10 and 103,357.80

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Solution

The fourth proportional to 215,643.24, 323,333.10 and 103,357.80 is: 154,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,643.24 : 323,333.10 = 103,357.80 : x
  2. Step 2: Convert to fraction form
    215,643.24/323,333.10 = 103,357.80/x
  3. Step 3: Cross multiply
    215,643.24x = 323,333.10 × 103,357.80
  4. Step 4: Simplify right side
    215,643.24x = 33,418,997,883.18
  5. Step 5: Solve for x
    x = 33,418,997,883.18/215,643.24
  6. Step 6: Final answer
    x = 154,973.55

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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.