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Finding the Fourth Proportional to 371,439.64, 557,380.81 and 134,800.77

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Solution

The fourth proportional to 371,439.64, 557,380.81 and 134,800.77 is: 202,281.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,439.64 : 557,380.81 = 134,800.77 : x
  2. Step 2: Convert to fraction form
    371,439.64/557,380.81 = 134,800.77/x
  3. Step 3: Cross multiply
    371,439.64x = 557,380.81 × 134,800.77
  4. Step 4: Simplify right side
    371,439.64x = 75,135,362,371.22
  5. Step 5: Solve for x
    x = 75,135,362,371.22/371,439.64
  6. Step 6: Final answer
    x = 202,281.49

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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.