Home / 401,530.92-554,112.67-231,765.05

Finding the Fourth Proportional to 401,530.92, 554,112.67 and 231,765.05

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Solution

The fourth proportional to 401,530.92, 554,112.67 and 231,765.05 is: 319,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,530.92 : 554,112.67 = 231,765.05 : x
  2. Step 2: Convert to fraction form
    401,530.92/554,112.67 = 231,765.05/x
  3. Step 3: Cross multiply
    401,530.92x = 554,112.67 × 231,765.05
  4. Step 4: Simplify right side
    401,530.92x = 128,423,949,443.57
  5. Step 5: Solve for x
    x = 128,423,949,443.57/401,530.92
  6. Step 6: Final answer
    x = 319,835.76

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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.