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Finding the Fourth Proportional to 255,084.68, 351,921.78 and 159,555.08

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Solution

The fourth proportional to 255,084.68, 351,921.78 and 159,555.08 is: 220,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,084.68 : 351,921.78 = 159,555.08 : x
  2. Step 2: Convert to fraction form
    255,084.68/351,921.78 = 159,555.08/x
  3. Step 3: Cross multiply
    255,084.68x = 351,921.78 × 159,555.08
  4. Step 4: Simplify right side
    255,084.68x = 56,150,907,761.64
  5. Step 5: Solve for x
    x = 56,150,907,761.64/255,084.68
  6. Step 6: Final answer
    x = 220,126.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.