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Finding the Fourth Proportional to 202,261, 279,120.30 and 112,837

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Solution

The fourth proportional to 202,261, 279,120.30 and 112,837 is: 155,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,261 : 279,120.30 = 112,837 : x
  2. Step 2: Convert to fraction form
    202,261/279,120.30 = 112,837/x
  3. Step 3: Cross multiply
    202,261x = 279,120.30 × 112,837
  4. Step 4: Simplify right side
    202,261x = 31,495,097,291.10
  5. Step 5: Solve for x
    x = 31,495,097,291.10/202,261
  6. Step 6: Final answer
    x = 155,715.13

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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.