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Finding the Fourth Proportional to 275,754.80, 413,632.20 and 157,438.10

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Solution

The fourth proportional to 275,754.80, 413,632.20 and 157,438.10 is: 236,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,754.80 : 413,632.20 = 157,438.10 : x
  2. Step 2: Convert to fraction form
    275,754.80/413,632.20 = 157,438.10/x
  3. Step 3: Cross multiply
    275,754.80x = 413,632.20 × 157,438.10
  4. Step 4: Simplify right side
    275,754.80x = 65,121,467,666.82
  5. Step 5: Solve for x
    x = 65,121,467,666.82/275,754.80
  6. Step 6: Final answer
    x = 236,157.15

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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.