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Finding the Fourth Proportional to 505,266.69, 758,136.29 and 220,920.33

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Solution

The fourth proportional to 505,266.69, 758,136.29 and 220,920.33 is: 331,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,266.69 : 758,136.29 = 220,920.33 : x
  2. Step 2: Convert to fraction form
    505,266.69/758,136.29 = 220,920.33/x
  3. Step 3: Cross multiply
    505,266.69x = 758,136.29 × 220,920.33
  4. Step 4: Simplify right side
    505,266.69x = 167,487,718,267.17
  5. Step 5: Solve for x
    x = 167,487,718,267.17/505,266.69
  6. Step 6: Final answer
    x = 331,483.79

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1.5x scale

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.