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Finding the Fourth Proportional to 545,191.52, 817,919.04 and 171,214.52

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Solution

The fourth proportional to 545,191.52, 817,919.04 and 171,214.52 is: 256,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,191.52 : 817,919.04 = 171,214.52 : x
  2. Step 2: Convert to fraction form
    545,191.52/817,919.04 = 171,214.52/x
  3. Step 3: Cross multiply
    545,191.52x = 817,919.04 × 171,214.52
  4. Step 4: Simplify right side
    545,191.52x = 140,039,615,832.46
  5. Step 5: Solve for x
    x = 140,039,615,832.46/545,191.52
  6. Step 6: Final answer
    x = 256,863.16

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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.