Home / 215,928.48-297,981.70-120,441.36

Finding the Fourth Proportional to 215,928.48, 297,981.70 and 120,441.36

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Solution

The fourth proportional to 215,928.48, 297,981.70 and 120,441.36 is: 166,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,928.48 : 297,981.70 = 120,441.36 : x
  2. Step 2: Convert to fraction form
    215,928.48/297,981.70 = 120,441.36/x
  3. Step 3: Cross multiply
    215,928.48x = 297,981.70 × 120,441.36
  4. Step 4: Simplify right side
    215,928.48x = 35,889,321,203.11
  5. Step 5: Solve for x
    x = 35,889,321,203.11/215,928.48
  6. Step 6: Final answer
    x = 166,209.30

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1.5x scale

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.