Home / 355,405.13-533,201.18-127,723.76

Finding the Fourth Proportional to 355,405.13, 533,201.18 and 127,723.76

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Solution

The fourth proportional to 355,405.13, 533,201.18 and 127,723.76 is: 191,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,405.13 : 533,201.18 = 127,723.76 : x
  2. Step 2: Convert to fraction form
    355,405.13/533,201.18 = 127,723.76/x
  3. Step 3: Cross multiply
    355,405.13x = 533,201.18 × 127,723.76
  4. Step 4: Simplify right side
    355,405.13x = 68,102,456,241.41
  5. Step 5: Solve for x
    x = 68,102,456,241.41/355,405.13
  6. Step 6: Final answer
    x = 191,619.23

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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.