Home / 220,445.89-303,933.63-142,784.46

Finding the Fourth Proportional to 220,445.89, 303,933.63 and 142,784.46

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Solution

The fourth proportional to 220,445.89, 303,933.63 and 142,784.46 is: 196,860.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,445.89 : 303,933.63 = 142,784.46 : x
  2. Step 2: Convert to fraction form
    220,445.89/303,933.63 = 142,784.46/x
  3. Step 3: Cross multiply
    220,445.89x = 303,933.63 × 142,784.46
  4. Step 4: Simplify right side
    220,445.89x = 43,396,997,001.80
  5. Step 5: Solve for x
    x = 43,396,997,001.80/220,445.89
  6. Step 6: Final answer
    x = 196,860.09

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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.