Home / 191,922.40-287,624.40-169,631.20

Finding the Fourth Proportional to 191,922.40, 287,624.40 and 169,631.20

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Solution

The fourth proportional to 191,922.40, 287,624.40 and 169,631.20 is: 254,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,922.40 : 287,624.40 = 169,631.20 : x
  2. Step 2: Convert to fraction form
    191,922.40/287,624.40 = 169,631.20/x
  3. Step 3: Cross multiply
    191,922.40x = 287,624.40 × 169,631.20
  4. Step 4: Simplify right side
    191,922.40x = 48,790,072,121.28
  5. Step 5: Solve for x
    x = 48,790,072,121.28/191,922.40
  6. Step 6: Final answer
    x = 254,217.71

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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.