Home / 205,145.40-307,718.10-200,998.20

Finding the Fourth Proportional to 205,145.40, 307,718.10 and 200,998.20

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Solution

The fourth proportional to 205,145.40, 307,718.10 and 200,998.20 is: 301,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,145.40 : 307,718.10 = 200,998.20 : x
  2. Step 2: Convert to fraction form
    205,145.40/307,718.10 = 200,998.20/x
  3. Step 3: Cross multiply
    205,145.40x = 307,718.10 × 200,998.20
  4. Step 4: Simplify right side
    205,145.40x = 61,850,784,207.42
  5. Step 5: Solve for x
    x = 61,850,784,207.42/205,145.40
  6. Step 6: Final answer
    x = 301,497.30

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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.