Home / 545,119.42-817,614.73-145,791.15

Finding the Fourth Proportional to 545,119.42, 817,614.73 and 145,791.15

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Solution

The fourth proportional to 545,119.42, 817,614.73 and 145,791.15 is: 218,669.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,119.42 : 817,614.73 = 145,791.15 : x
  2. Step 2: Convert to fraction form
    545,119.42/817,614.73 = 145,791.15/x
  3. Step 3: Cross multiply
    545,119.42x = 817,614.73 × 145,791.15
  4. Step 4: Simplify right side
    545,119.42x = 119,200,991,743.64
  5. Step 5: Solve for x
    x = 119,200,991,743.64/545,119.42
  6. Step 6: Final answer
    x = 218,669.50

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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.