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Finding the Fourth Proportional to 338,996.18, 508,477.83 and 125,805.65

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Solution

The fourth proportional to 338,996.18, 508,477.83 and 125,805.65 is: 188,702.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,996.18 : 508,477.83 = 125,805.65 : x
  2. Step 2: Convert to fraction form
    338,996.18/508,477.83 = 125,805.65/x
  3. Step 3: Cross multiply
    338,996.18x = 508,477.83 × 125,805.65
  4. Step 4: Simplify right side
    338,996.18x = 63,969,385,774.65
  5. Step 5: Solve for x
    x = 63,969,385,774.65/338,996.18
  6. Step 6: Final answer
    x = 188,702.38

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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.