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Finding the Fourth Proportional to 344,415.50, 516,132.55 and 253,745.11

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Solution

The fourth proportional to 344,415.50, 516,132.55 and 253,745.11 is: 380,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,415.50 : 516,132.55 = 253,745.11 : x
  2. Step 2: Convert to fraction form
    344,415.50/516,132.55 = 253,745.11/x
  3. Step 3: Cross multiply
    344,415.50x = 516,132.55 × 253,745.11
  4. Step 4: Simplify right side
    344,415.50x = 130,966,110,674.33
  5. Step 5: Solve for x
    x = 130,966,110,674.33/344,415.50
  6. Step 6: Final answer
    x = 380,256.15

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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.