Home / 206,027.15-309,240.48-99,486.23

Finding the Fourth Proportional to 206,027.15, 309,240.48 and 99,486.23

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Solution

The fourth proportional to 206,027.15, 309,240.48 and 99,486.23 is: 149,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,027.15 : 309,240.48 = 99,486.23 : x
  2. Step 2: Convert to fraction form
    206,027.15/309,240.48 = 99,486.23/x
  3. Step 3: Cross multiply
    206,027.15x = 309,240.48 × 99,486.23
  4. Step 4: Simplify right side
    206,027.15x = 30,765,168,345.46
  5. Step 5: Solve for x
    x = 30,765,168,345.46/206,027.15
  6. Step 6: Final answer
    x = 149,325.80

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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.