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Finding the Fourth Proportional to 371,280.54, 512,353.44 and 201,511.02

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Solution

The fourth proportional to 371,280.54, 512,353.44 and 201,511.02 is: 278,077.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,280.54 : 512,353.44 = 201,511.02 : x
  2. Step 2: Convert to fraction form
    371,280.54/512,353.44 = 201,511.02/x
  3. Step 3: Cross multiply
    371,280.54x = 512,353.44 × 201,511.02
  4. Step 4: Simplify right side
    371,280.54x = 103,244,864,294.91
  5. Step 5: Solve for x
    x = 103,244,864,294.91/371,280.54
  6. Step 6: Final answer
    x = 278,077.77

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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.