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Finding the Fourth Proportional to 371,142.64, 557,009.16 and 134,552.80

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Solution

The fourth proportional to 371,142.64, 557,009.16 and 134,552.80 is: 201,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,142.64 : 557,009.16 = 134,552.80 : x
  2. Step 2: Convert to fraction form
    371,142.64/557,009.16 = 134,552.80/x
  3. Step 3: Cross multiply
    371,142.64x = 557,009.16 × 134,552.80
  4. Step 4: Simplify right side
    371,142.64x = 74,947,142,103.65
  5. Step 5: Solve for x
    x = 74,947,142,103.65/371,142.64
  6. Step 6: Final answer
    x = 201,936.22

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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.