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Finding the Fourth Proportional to 216,513.87, 298,787.30 and 119,720.22

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Solution

The fourth proportional to 216,513.87, 298,787.30 and 119,720.22 is: 165,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,513.87 : 298,787.30 = 119,720.22 : x
  2. Step 2: Convert to fraction form
    216,513.87/298,787.30 = 119,720.22/x
  3. Step 3: Cross multiply
    216,513.87x = 298,787.30 × 119,720.22
  4. Step 4: Simplify right side
    216,513.87x = 35,770,881,289.21
  5. Step 5: Solve for x
    x = 35,770,881,289.21/216,513.87
  6. Step 6: Final answer
    x = 165,212.89

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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.