Home / 215,928.47-297,981.69-120,441.35

Finding the Fourth Proportional to 215,928.47, 297,981.69 and 120,441.35

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Solution

The fourth proportional to 215,928.47, 297,981.69 and 120,441.35 is: 166,209.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,928.47 : 297,981.69 = 120,441.35 : x
  2. Step 2: Convert to fraction form
    215,928.47/297,981.69 = 120,441.35/x
  3. Step 3: Cross multiply
    215,928.47x = 297,981.69 × 120,441.35
  4. Step 4: Simplify right side
    215,928.47x = 35,889,317,018.88
  5. Step 5: Solve for x
    x = 35,889,317,018.88/215,928.47
  6. Step 6: Final answer
    x = 166,209.29

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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.