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Finding the Fourth Proportional to 578,188.91, 866,020.31 and 240,204.80

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Solution

The fourth proportional to 578,188.91, 866,020.31 and 240,204.80 is: 359,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,188.91 : 866,020.31 = 240,204.80 : x
  2. Step 2: Convert to fraction form
    578,188.91/866,020.31 = 240,204.80/x
  3. Step 3: Cross multiply
    578,188.91x = 866,020.31 × 240,204.80
  4. Step 4: Simplify right side
    578,188.91x = 208,022,237,224.28
  5. Step 5: Solve for x
    x = 208,022,237,224.28/578,188.91
  6. Step 6: Final answer
    x = 359,782.47

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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.