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Finding the Fourth Proportional to 207,910.22, 286,916.22 and 112,416.82

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Solution

The fourth proportional to 207,910.22, 286,916.22 and 112,416.82 is: 155,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,910.22 : 286,916.22 = 112,416.82 : x
  2. Step 2: Convert to fraction form
    207,910.22/286,916.22 = 112,416.82/x
  3. Step 3: Cross multiply
    207,910.22x = 286,916.22 × 112,416.82
  4. Step 4: Simplify right side
    207,910.22x = 32,254,208,341.53
  5. Step 5: Solve for x
    x = 32,254,208,341.53/207,910.22
  6. Step 6: Final answer
    x = 155,135.27

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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.