Home / 219,877.57-303,438.50-129,232.23

Finding the Fourth Proportional to 219,877.57, 303,438.50 and 129,232.23

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Solution

The fourth proportional to 219,877.57, 303,438.50 and 129,232.23 is: 178,344.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,877.57 : 303,438.50 = 129,232.23 : x
  2. Step 2: Convert to fraction form
    219,877.57/303,438.50 = 129,232.23/x
  3. Step 3: Cross multiply
    219,877.57x = 303,438.50 × 129,232.23
  4. Step 4: Simplify right side
    219,877.57x = 39,214,034,022.86
  5. Step 5: Solve for x
    x = 39,214,034,022.86/219,877.57
  6. Step 6: Final answer
    x = 178,344.86

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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.