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Finding the Fourth Proportional to 388,884.24, 583,354.44 and 136,136.16

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Solution

The fourth proportional to 388,884.24, 583,354.44 and 136,136.16 is: 204,214.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,884.24 : 583,354.44 = 136,136.16 : x
  2. Step 2: Convert to fraction form
    388,884.24/583,354.44 = 136,136.16/x
  3. Step 3: Cross multiply
    388,884.24x = 583,354.44 × 136,136.16
  4. Step 4: Simplify right side
    388,884.24x = 79,415,633,380.55
  5. Step 5: Solve for x
    x = 79,415,633,380.55/388,884.24
  6. Step 6: Final answer
    x = 204,214.07

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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.