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Finding the Fourth Proportional to 545,269.70, 817,904.55 and 171,292.10

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Solution

The fourth proportional to 545,269.70, 817,904.55 and 171,292.10 is: 256,938.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,269.70 : 817,904.55 = 171,292.10 : x
  2. Step 2: Convert to fraction form
    545,269.70/817,904.55 = 171,292.10/x
  3. Step 3: Cross multiply
    545,269.70x = 817,904.55 × 171,292.10
  4. Step 4: Simplify right side
    545,269.70x = 140,100,587,969.06
  5. Step 5: Solve for x
    x = 140,100,587,969.06/545,269.70
  6. Step 6: Final answer
    x = 256,938.15

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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.