Home / 215,310.12-297,125.62-118,511.88

Finding the Fourth Proportional to 215,310.12, 297,125.62 and 118,511.88

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Solution

The fourth proportional to 215,310.12, 297,125.62 and 118,511.88 is: 163,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,310.12 : 297,125.62 = 118,511.88 : x
  2. Step 2: Convert to fraction form
    215,310.12/297,125.62 = 118,511.88/x
  3. Step 3: Cross multiply
    215,310.12x = 297,125.62 × 118,511.88
  4. Step 4: Simplify right side
    215,310.12x = 35,212,915,822.37
  5. Step 5: Solve for x
    x = 35,212,915,822.37/215,310.12
  6. Step 6: Final answer
    x = 163,545.10

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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.