Home / 251,261.51-376,901.12-80,488.42

Finding the Fourth Proportional to 251,261.51, 376,901.12 and 80,488.42

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Solution

The fourth proportional to 251,261.51, 376,901.12 and 80,488.42 is: 120,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,261.51 : 376,901.12 = 80,488.42 : x
  2. Step 2: Convert to fraction form
    251,261.51/376,901.12 = 80,488.42/x
  3. Step 3: Cross multiply
    251,261.51x = 376,901.12 × 80,488.42
  4. Step 4: Simplify right side
    251,261.51x = 30,336,174,451.25
  5. Step 5: Solve for x
    x = 30,336,174,451.25/251,261.51
  6. Step 6: Final answer
    x = 120,735.46

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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.