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Finding the Fourth Proportional to 201,317.10, 277,818.17 and 115,277.40

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Solution

The fourth proportional to 201,317.10, 277,818.17 and 115,277.40 is: 159,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,317.10 : 277,818.17 = 115,277.40 : x
  2. Step 2: Convert to fraction form
    201,317.10/277,818.17 = 115,277.40/x
  3. Step 3: Cross multiply
    201,317.10x = 277,818.17 × 115,277.40
  4. Step 4: Simplify right side
    201,317.10x = 32,026,155,733.97
  5. Step 5: Solve for x
    x = 32,026,155,733.97/201,317.10
  6. Step 6: Final answer
    x = 159,083.14

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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.