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Finding the Fourth Proportional to 371,876.90, 513,187.65 and 202,111.02

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Solution

The fourth proportional to 371,876.90, 513,187.65 and 202,111.02 is: 278,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,876.90 : 513,187.65 = 202,111.02 : x
  2. Step 2: Convert to fraction form
    371,876.90/513,187.65 = 202,111.02/x
  3. Step 3: Cross multiply
    371,876.90x = 513,187.65 × 202,111.02
  4. Step 4: Simplify right side
    371,876.90x = 103,720,879,392.90
  5. Step 5: Solve for x
    x = 103,720,879,392.90/371,876.90
  6. Step 6: Final answer
    x = 278,911.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.