Home / 219,869.07-303,426.77-129,223.73

Finding the Fourth Proportional to 219,869.07, 303,426.77 and 129,223.73

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Solution

The fourth proportional to 219,869.07, 303,426.77 and 129,223.73 is: 178,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,869.07 : 303,426.77 = 129,223.73 : x
  2. Step 2: Convert to fraction form
    219,869.07/303,426.77 = 129,223.73/x
  3. Step 3: Cross multiply
    219,869.07x = 303,426.77 × 129,223.73
  4. Step 4: Simplify right side
    219,869.07x = 39,209,936,838.00
  5. Step 5: Solve for x
    x = 39,209,936,838.00/219,869.07
  6. Step 6: Final answer
    x = 178,333.12

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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.