Home / 215,267.03-322,900.82-102,920.84

Finding the Fourth Proportional to 215,267.03, 322,900.82 and 102,920.84

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Solution

The fourth proportional to 215,267.03, 322,900.82 and 102,920.84 is: 154,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,267.03 : 322,900.82 = 102,920.84 : x
  2. Step 2: Convert to fraction form
    215,267.03/322,900.82 = 102,920.84/x
  3. Step 3: Cross multiply
    215,267.03x = 322,900.82 × 102,920.84
  4. Step 4: Simplify right side
    215,267.03x = 33,233,223,116.48
  5. Step 5: Solve for x
    x = 33,233,223,116.48/215,267.03
  6. Step 6: Final answer
    x = 154,381.39

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1.5x scale

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.