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Finding the Fourth Proportional to 219,980.12, 303,572.78 and 119,378.12

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Solution

The fourth proportional to 219,980.12, 303,572.78 and 119,378.12 is: 164,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,980.12 : 303,572.78 = 119,378.12 : x
  2. Step 2: Convert to fraction form
    219,980.12/303,572.78 = 119,378.12/x
  3. Step 3: Cross multiply
    219,980.12x = 303,572.78 × 119,378.12
  4. Step 4: Simplify right side
    219,980.12x = 36,239,947,759.57
  5. Step 5: Solve for x
    x = 36,239,947,759.57/219,980.12
  6. Step 6: Final answer
    x = 164,741.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.