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Finding the Fourth Proportional to 255,025.71, 351,935.48 and 140,301.89

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Solution

The fourth proportional to 255,025.71, 351,935.48 and 140,301.89 is: 193,616.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,025.71 : 351,935.48 = 140,301.89 : x
  2. Step 2: Convert to fraction form
    255,025.71/351,935.48 = 140,301.89/x
  3. Step 3: Cross multiply
    255,025.71x = 351,935.48 × 140,301.89
  4. Step 4: Simplify right side
    255,025.71x = 49,377,213,002.06
  5. Step 5: Solve for x
    x = 49,377,213,002.06/255,025.71
  6. Step 6: Final answer
    x = 193,616.61

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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.