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Finding the Fourth Proportional to 404,503.70, 558,211.41 and 223,217.30

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Solution

The fourth proportional to 404,503.70, 558,211.41 and 223,217.30 is: 308,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,503.70 : 558,211.41 = 223,217.30 : x
  2. Step 2: Convert to fraction form
    404,503.70/558,211.41 = 223,217.30/x
  3. Step 3: Cross multiply
    404,503.70x = 558,211.41 × 223,217.30
  4. Step 4: Simplify right side
    404,503.70x = 124,602,443,769.39
  5. Step 5: Solve for x
    x = 124,602,443,769.39/404,503.70
  6. Step 6: Final answer
    x = 308,037.83

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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.