Home / 448,346.39-618,687.09-252,142.20

Finding the Fourth Proportional to 448,346.39, 618,687.09 and 252,142.20

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Solution

The fourth proportional to 448,346.39, 618,687.09 and 252,142.20 is: 347,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,346.39 : 618,687.09 = 252,142.20 : x
  2. Step 2: Convert to fraction form
    448,346.39/618,687.09 = 252,142.20/x
  3. Step 3: Cross multiply
    448,346.39x = 618,687.09 × 252,142.20
  4. Step 4: Simplify right side
    448,346.39x = 155,997,123,984.20
  5. Step 5: Solve for x
    x = 155,997,123,984.20/448,346.39
  6. Step 6: Final answer
    x = 347,938.85

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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.