Home / 338,968.18-508,618.12-136,555.86

Finding the Fourth Proportional to 338,968.18, 508,618.12 and 136,555.86

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Solution

The fourth proportional to 338,968.18, 508,618.12 and 136,555.86 is: 204,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,968.18 : 508,618.12 = 136,555.86 : x
  2. Step 2: Convert to fraction form
    338,968.18/508,618.12 = 136,555.86/x
  3. Step 3: Cross multiply
    338,968.18x = 508,618.12 × 136,555.86
  4. Step 4: Simplify right side
    338,968.18x = 69,454,784,788.18
  5. Step 5: Solve for x
    x = 69,454,784,788.18/338,968.18
  6. Step 6: Final answer
    x = 204,900.60

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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.