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Finding the Fourth Proportional to 236,471.80, 354,707.70 and 147,998.20

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Solution

The fourth proportional to 236,471.80, 354,707.70 and 147,998.20 is: 221,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,471.80 : 354,707.70 = 147,998.20 : x
  2. Step 2: Convert to fraction form
    236,471.80/354,707.70 = 147,998.20/x
  3. Step 3: Cross multiply
    236,471.80x = 354,707.70 × 147,998.20
  4. Step 4: Simplify right side
    236,471.80x = 52,496,101,126.14
  5. Step 5: Solve for x
    x = 52,496,101,126.14/236,471.80
  6. Step 6: Final answer
    x = 221,997.30

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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.