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Finding the Fourth Proportional to 363,136.80, 501,143.04 and 219,815.76

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Solution

The fourth proportional to 363,136.80, 501,143.04 and 219,815.76 is: 303,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,136.80 : 501,143.04 = 219,815.76 : x
  2. Step 2: Convert to fraction form
    363,136.80/501,143.04 = 219,815.76/x
  3. Step 3: Cross multiply
    363,136.80x = 501,143.04 × 219,815.76
  4. Step 4: Simplify right side
    363,136.80x = 110,159,138,206.31
  5. Step 5: Solve for x
    x = 110,159,138,206.31/363,136.80
  6. Step 6: Final answer
    x = 303,354.38

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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.