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Finding the Fourth Proportional to 245,488.26, 338,744.03 and 136,566.86

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Solution

The fourth proportional to 245,488.26, 338,744.03 and 136,566.86 is: 188,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,488.26 : 338,744.03 = 136,566.86 : x
  2. Step 2: Convert to fraction form
    245,488.26/338,744.03 = 136,566.86/x
  3. Step 3: Cross multiply
    245,488.26x = 338,744.03 × 136,566.86
  4. Step 4: Simplify right side
    245,488.26x = 46,261,206,144.29
  5. Step 5: Solve for x
    x = 46,261,206,144.29/245,488.26
  6. Step 6: Final answer
    x = 188,445.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.