Home / 215,511.52-297,384.61-120,027.10

Finding the Fourth Proportional to 215,511.52, 297,384.61 and 120,027.10

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Solution

The fourth proportional to 215,511.52, 297,384.61 and 120,027.10 is: 165,625.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,511.52 : 297,384.61 = 120,027.10 : x
  2. Step 2: Convert to fraction form
    215,511.52/297,384.61 = 120,027.10/x
  3. Step 3: Cross multiply
    215,511.52x = 297,384.61 × 120,027.10
  4. Step 4: Simplify right side
    215,511.52x = 35,694,210,979.33
  5. Step 5: Solve for x
    x = 35,694,210,979.33/215,511.52
  6. Step 6: Final answer
    x = 165,625.54

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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.