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Finding the Fourth Proportional to 245,356.70, 338,590.33 and 136,462.02

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Solution

The fourth proportional to 245,356.70, 338,590.33 and 136,462.02 is: 188,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,356.70 : 338,590.33 = 136,462.02 : x
  2. Step 2: Convert to fraction form
    245,356.70/338,590.33 = 136,462.02/x
  3. Step 3: Cross multiply
    245,356.70x = 338,590.33 × 136,462.02
  4. Step 4: Simplify right side
    245,356.70x = 46,204,718,773.40
  5. Step 5: Solve for x
    x = 46,204,718,773.40/245,356.70
  6. Step 6: Final answer
    x = 188,316.52

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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.