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Finding the Fourth Proportional to 500,168.45, 750,326.48 and 145,136.32

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Solution

The fourth proportional to 500,168.45, 750,326.48 and 145,136.32 is: 217,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,168.45 : 750,326.48 = 145,136.32 : x
  2. Step 2: Convert to fraction form
    500,168.45/750,326.48 = 145,136.32/x
  3. Step 3: Cross multiply
    500,168.45x = 750,326.48 × 145,136.32
  4. Step 4: Simplify right side
    500,168.45x = 108,899,619,628.44
  5. Step 5: Solve for x
    x = 108,899,619,628.44/500,168.45
  6. Step 6: Final answer
    x = 217,725.89

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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.