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Finding the Fourth Proportional to 362,172.78, 499,774.20 and 219,011.76

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Solution

The fourth proportional to 362,172.78, 499,774.20 and 219,011.76 is: 302,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,172.78 : 499,774.20 = 219,011.76 : x
  2. Step 2: Convert to fraction form
    362,172.78/499,774.20 = 219,011.76/x
  3. Step 3: Cross multiply
    362,172.78x = 499,774.20 × 219,011.76
  4. Step 4: Simplify right side
    362,172.78x = 109,456,427,144.59
  5. Step 5: Solve for x
    x = 109,456,427,144.59/362,172.78
  6. Step 6: Final answer
    x = 302,221.57

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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.