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Finding the Fourth Proportional to 356,350.80, 534,525.84 and 145,989.12

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Solution

The fourth proportional to 356,350.80, 534,525.84 and 145,989.12 is: 218,983.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,350.80 : 534,525.84 = 145,989.12 : x
  2. Step 2: Convert to fraction form
    356,350.80/534,525.84 = 145,989.12/x
  3. Step 3: Cross multiply
    356,350.80x = 534,525.84 × 145,989.12
  4. Step 4: Simplify right side
    356,350.80x = 78,034,956,998.86
  5. Step 5: Solve for x
    x = 78,034,956,998.86/356,350.80
  6. Step 6: Final answer
    x = 218,983.53

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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.