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Finding the Fourth Proportional to 225,504.33, 310,946.60 and 143,703

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Solution

The fourth proportional to 225,504.33, 310,946.60 and 143,703 is: 198,151.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,504.33 : 310,946.60 = 143,703 : x
  2. Step 2: Convert to fraction form
    225,504.33/310,946.60 = 143,703/x
  3. Step 3: Cross multiply
    225,504.33x = 310,946.60 × 143,703
  4. Step 4: Simplify right side
    225,504.33x = 44,683,959,259.80
  5. Step 5: Solve for x
    x = 44,683,959,259.80/225,504.33
  6. Step 6: Final answer
    x = 198,151.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.