Home / 259,109.21-387,785.98-159,332.60

Finding the Fourth Proportional to 259,109.21, 387,785.98 and 159,332.60

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Solution

The fourth proportional to 259,109.21, 387,785.98 and 159,332.60 is: 238,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,109.21 : 387,785.98 = 159,332.60 : x
  2. Step 2: Convert to fraction form
    259,109.21/387,785.98 = 159,332.60/x
  3. Step 3: Cross multiply
    259,109.21x = 387,785.98 × 159,332.60
  4. Step 4: Simplify right side
    259,109.21x = 61,786,949,605.58
  5. Step 5: Solve for x
    x = 61,786,949,605.58/259,109.21
  6. Step 6: Final answer
    x = 238,459.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.