Home / 215,688.20-323,532.30-211,080.20

Finding the Fourth Proportional to 215,688.20, 323,532.30 and 211,080.20

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Solution

The fourth proportional to 215,688.20, 323,532.30 and 211,080.20 is: 316,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,688.20 : 323,532.30 = 211,080.20 : x
  2. Step 2: Convert to fraction form
    215,688.20/323,532.30 = 211,080.20/x
  3. Step 3: Cross multiply
    215,688.20x = 323,532.30 × 211,080.20
  4. Step 4: Simplify right side
    215,688.20x = 68,291,262,590.46
  5. Step 5: Solve for x
    x = 68,291,262,590.46/215,688.20
  6. Step 6: Final answer
    x = 316,620.30

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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.