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Finding the Fourth Proportional to 212,390.78, 293,097.02 and 116,895.42

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Solution

The fourth proportional to 212,390.78, 293,097.02 and 116,895.42 is: 161,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,390.78 : 293,097.02 = 116,895.42 : x
  2. Step 2: Convert to fraction form
    212,390.78/293,097.02 = 116,895.42/x
  3. Step 3: Cross multiply
    212,390.78x = 293,097.02 × 116,895.42
  4. Step 4: Simplify right side
    212,390.78x = 34,261,698,669.17
  5. Step 5: Solve for x
    x = 34,261,698,669.17/212,390.78
  6. Step 6: Final answer
    x = 161,314.44

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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.