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Finding the Fourth Proportional to 255,260.70, 352,745.55 and 191,487.78

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Solution

The fourth proportional to 255,260.70, 352,745.55 and 191,487.78 is: 264,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,260.70 : 352,745.55 = 191,487.78 : x
  2. Step 2: Convert to fraction form
    255,260.70/352,745.55 = 191,487.78/x
  3. Step 3: Cross multiply
    255,260.70x = 352,745.55 × 191,487.78
  4. Step 4: Simplify right side
    255,260.70x = 67,546,462,274.38
  5. Step 5: Solve for x
    x = 67,546,462,274.38/255,260.70
  6. Step 6: Final answer
    x = 264,617.55

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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.