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Finding the Fourth Proportional to 188,885.90, 283,359.60 and 55,779.62

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Solution

The fourth proportional to 188,885.90, 283,359.60 and 55,779.62 is: 83,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,885.90 : 283,359.60 = 55,779.62 : x
  2. Step 2: Convert to fraction form
    188,885.90/283,359.60 = 55,779.62/x
  3. Step 3: Cross multiply
    188,885.90x = 283,359.60 × 55,779.62
  4. Step 4: Simplify right side
    188,885.90x = 15,805,690,811.35
  5. Step 5: Solve for x
    x = 15,805,690,811.35/188,885.90
  6. Step 6: Final answer
    x = 83,678.51

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1.5x scale

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.