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Finding the Fourth Proportional to 186,281.55, 279,442.32 and 79,676.58

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Solution

The fourth proportional to 186,281.55, 279,442.32 and 79,676.58 is: 119,523.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,281.55 : 279,442.32 = 79,676.58 : x
  2. Step 2: Convert to fraction form
    186,281.55/279,442.32 = 79,676.58/x
  3. Step 3: Cross multiply
    186,281.55x = 279,442.32 × 79,676.58
  4. Step 4: Simplify right side
    186,281.55x = 22,265,006,768.46
  5. Step 5: Solve for x
    x = 22,265,006,768.46/186,281.55
  6. Step 6: Final answer
    x = 119,523.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.