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Finding the Fourth Proportional to 259,566.45, 389,349.68 and 259,566.45

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Solution

The fourth proportional to 259,566.45, 389,349.68 and 259,566.45 is: 389,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,566.45 : 389,349.68 = 259,566.45 : x
  2. Step 2: Convert to fraction form
    259,566.45/389,349.68 = 259,566.45/x
  3. Step 3: Cross multiply
    259,566.45x = 389,349.68 × 259,566.45
  4. Step 4: Simplify right side
    259,566.45x = 101,062,112,948.40
  5. Step 5: Solve for x
    x = 101,062,112,948.40/259,566.45
  6. Step 6: Final answer
    x = 389,349.68

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Similar ratio
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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.