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Finding the Fourth Proportional to 525,191.63, 787,803.63 and 205,330.73

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Solution

The fourth proportional to 525,191.63, 787,803.63 and 205,330.73 is: 308,002.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,191.63 : 787,803.63 = 205,330.73 : x
  2. Step 2: Convert to fraction form
    525,191.63/787,803.63 = 205,330.73/x
  3. Step 3: Cross multiply
    525,191.63x = 787,803.63 × 205,330.73
  4. Step 4: Simplify right side
    525,191.63x = 161,760,290,505.53
  5. Step 5: Solve for x
    x = 161,760,290,505.53/525,191.63
  6. Step 6: Final answer
    x = 308,002.42

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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.