Home / 338,982.40-508,473.60-206,123.20

Finding the Fourth Proportional to 338,982.40, 508,473.60 and 206,123.20

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Solution

The fourth proportional to 338,982.40, 508,473.60 and 206,123.20 is: 309,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,982.40 : 508,473.60 = 206,123.20 : x
  2. Step 2: Convert to fraction form
    338,982.40/508,473.60 = 206,123.20/x
  3. Step 3: Cross multiply
    338,982.40x = 508,473.60 × 206,123.20
  4. Step 4: Simplify right side
    338,982.40x = 104,808,205,547.52
  5. Step 5: Solve for x
    x = 104,808,205,547.52/338,982.40
  6. Step 6: Final answer
    x = 309,184.80

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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.