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Finding the Fourth Proportional to 275,458.20, 413,187.30 and 157,360.20

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Solution

The fourth proportional to 275,458.20, 413,187.30 and 157,360.20 is: 236,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,458.20 : 413,187.30 = 157,360.20 : x
  2. Step 2: Convert to fraction form
    275,458.20/413,187.30 = 157,360.20/x
  3. Step 3: Cross multiply
    275,458.20x = 413,187.30 × 157,360.20
  4. Step 4: Simplify right side
    275,458.20x = 65,019,236,165.46
  5. Step 5: Solve for x
    x = 65,019,236,165.46/275,458.20
  6. Step 6: Final answer
    x = 236,040.30

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1.5x scale

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.