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Finding the Fourth Proportional to 363,133.80, 501,138.90 and 219,812.76

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Solution

The fourth proportional to 363,133.80, 501,138.90 and 219,812.76 is: 303,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,133.80 : 501,138.90 = 219,812.76 : x
  2. Step 2: Convert to fraction form
    363,133.80/501,138.90 = 219,812.76/x
  3. Step 3: Cross multiply
    363,133.80x = 501,138.90 × 219,812.76
  4. Step 4: Simplify right side
    363,133.80x = 110,156,724,752.36
  5. Step 5: Solve for x
    x = 110,156,724,752.36/363,133.80
  6. Step 6: Final answer
    x = 303,350.24

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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.