Home / 218,120.08-301,009.20-120,007.48

Finding the Fourth Proportional to 218,120.08, 301,009.20 and 120,007.48

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Solution

The fourth proportional to 218,120.08, 301,009.20 and 120,007.48 is: 165,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,120.08 : 301,009.20 = 120,007.48 : x
  2. Step 2: Convert to fraction form
    218,120.08/301,009.20 = 120,007.48/x
  3. Step 3: Cross multiply
    218,120.08x = 301,009.20 × 120,007.48
  4. Step 4: Simplify right side
    218,120.08x = 36,123,355,548.82
  5. Step 5: Solve for x
    x = 36,123,355,548.82/218,120.08
  6. Step 6: Final answer
    x = 165,612.24

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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.