Home / 205,060.20-307,918.35-155,196.60

Finding the Fourth Proportional to 205,060.20, 307,918.35 and 155,196.60

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Solution

The fourth proportional to 205,060.20, 307,918.35 and 155,196.60 is: 233,043.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,060.20 : 307,918.35 = 155,196.60 : x
  2. Step 2: Convert to fraction form
    205,060.20/307,918.35 = 155,196.60/x
  3. Step 3: Cross multiply
    205,060.20x = 307,918.35 × 155,196.60
  4. Step 4: Simplify right side
    205,060.20x = 47,787,880,997.61
  5. Step 5: Solve for x
    x = 47,787,880,997.61/205,060.20
  6. Step 6: Final answer
    x = 233,043.18

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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.