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Finding the Fourth Proportional to 205,224.10, 307,866.93 and 72,080.89

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Solution

The fourth proportional to 205,224.10, 307,866.93 and 72,080.89 is: 108,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,224.10 : 307,866.93 = 72,080.89 : x
  2. Step 2: Convert to fraction form
    205,224.10/307,866.93 = 72,080.89/x
  3. Step 3: Cross multiply
    205,224.10x = 307,866.93 × 72,080.89
  4. Step 4: Simplify right side
    205,224.10x = 22,191,322,315.97
  5. Step 5: Solve for x
    x = 22,191,322,315.97/205,224.10
  6. Step 6: Final answer
    x = 108,132.15

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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.