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Finding the Fourth Proportional to 259,957.37, 358,750.69 and 143,671.86

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Solution

The fourth proportional to 259,957.37, 358,750.69 and 143,671.86 is: 198,272.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,957.37 : 358,750.69 = 143,671.86 : x
  2. Step 2: Convert to fraction form
    259,957.37/358,750.69 = 143,671.86/x
  3. Step 3: Cross multiply
    259,957.37x = 358,750.69 × 143,671.86
  4. Step 4: Simplify right side
    259,957.37x = 51,542,378,549.40
  5. Step 5: Solve for x
    x = 51,542,378,549.40/259,957.37
  6. Step 6: Final answer
    x = 198,272.42

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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.