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Finding the Fourth Proportional to 255,581.60, 352,718.64 and 140,860.20

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Solution

The fourth proportional to 255,581.60, 352,718.64 and 140,860.20 is: 194,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,581.60 : 352,718.64 = 140,860.20 : x
  2. Step 2: Convert to fraction form
    255,581.60/352,718.64 = 140,860.20/x
  3. Step 3: Cross multiply
    255,581.60x = 352,718.64 × 140,860.20
  4. Step 4: Simplify right side
    255,581.60x = 49,684,018,174.13
  5. Step 5: Solve for x
    x = 49,684,018,174.13/255,581.60
  6. Step 6: Final answer
    x = 194,395.91

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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.