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Finding the Fourth Proportional to 255,329.70, 382,994.55 and 65,789.70

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Solution

The fourth proportional to 255,329.70, 382,994.55 and 65,789.70 is: 98,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,329.70 : 382,994.55 = 65,789.70 : x
  2. Step 2: Convert to fraction form
    255,329.70/382,994.55 = 65,789.70/x
  3. Step 3: Cross multiply
    255,329.70x = 382,994.55 × 65,789.70
  4. Step 4: Simplify right side
    255,329.70x = 25,197,096,546.14
  5. Step 5: Solve for x
    x = 25,197,096,546.14/255,329.70
  6. Step 6: Final answer
    x = 98,684.55

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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.