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Finding the Fourth Proportional to 371,187.46, 512,248.62 and 201,421.72

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Solution

The fourth proportional to 371,187.46, 512,248.62 and 201,421.72 is: 277,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,187.46 : 512,248.62 = 201,421.72 : x
  2. Step 2: Convert to fraction form
    371,187.46/512,248.62 = 201,421.72/x
  3. Step 3: Cross multiply
    371,187.46x = 512,248.62 × 201,421.72
  4. Step 4: Simplify right side
    371,187.46x = 103,177,998,108.03
  5. Step 5: Solve for x
    x = 103,177,998,108.03/371,187.46
  6. Step 6: Final answer
    x = 277,967.36

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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.