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Finding the Fourth Proportional to 245,377, 338,617.02 and 136,480.60

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Solution

The fourth proportional to 245,377, 338,617.02 and 136,480.60 is: 188,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,377 : 338,617.02 = 136,480.60 : x
  2. Step 2: Convert to fraction form
    245,377/338,617.02 = 136,480.60/x
  3. Step 3: Cross multiply
    245,377x = 338,617.02 × 136,480.60
  4. Step 4: Simplify right side
    245,377x = 46,214,654,059.81
  5. Step 5: Solve for x
    x = 46,214,654,059.81/245,377
  6. Step 6: Final answer
    x = 188,341.43

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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.