Home / 215,920.28-297,970.44-120,424.52

Finding the Fourth Proportional to 215,920.28, 297,970.44 and 120,424.52

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Solution

The fourth proportional to 215,920.28, 297,970.44 and 120,424.52 is: 166,186.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,920.28 : 297,970.44 = 120,424.52 : x
  2. Step 2: Convert to fraction form
    215,920.28/297,970.44 = 120,424.52/x
  3. Step 3: Cross multiply
    215,920.28x = 297,970.44 × 120,424.52
  4. Step 4: Simplify right side
    215,920.28x = 35,882,947,211.19
  5. Step 5: Solve for x
    x = 35,882,947,211.19/215,920.28
  6. Step 6: Final answer
    x = 166,186.09

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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.