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Finding the Fourth Proportional to 545,249.43, 817,885.08 and 145,889.56

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Solution

The fourth proportional to 545,249.43, 817,885.08 and 145,889.56 is: 218,837.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,249.43 : 817,885.08 = 145,889.56 : x
  2. Step 2: Convert to fraction form
    545,249.43/817,885.08 = 145,889.56/x
  3. Step 3: Cross multiply
    545,249.43x = 817,885.08 × 145,889.56
  4. Step 4: Simplify right side
    545,249.43x = 119,320,894,451.77
  5. Step 5: Solve for x
    x = 119,320,894,451.77/545,249.43
  6. Step 6: Final answer
    x = 218,837.27

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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.