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Finding the Fourth Proportional to 292,136.94, 437,052.42 and 221,263.78

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Solution

The fourth proportional to 292,136.94, 437,052.42 and 221,263.78 is: 331,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,136.94 : 437,052.42 = 221,263.78 : x
  2. Step 2: Convert to fraction form
    292,136.94/437,052.42 = 221,263.78/x
  3. Step 3: Cross multiply
    292,136.94x = 437,052.42 × 221,263.78
  4. Step 4: Simplify right side
    292,136.94x = 96,703,870,507.35
  5. Step 5: Solve for x
    x = 96,703,870,507.35/292,136.94
  6. Step 6: Final answer
    x = 331,022.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.