Home / 253,778.08-380,637.68-66,804.16

Finding the Fourth Proportional to 253,778.08, 380,637.68 and 66,804.16

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Solution

The fourth proportional to 253,778.08, 380,637.68 and 66,804.16 is: 100,198.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,778.08 : 380,637.68 = 66,804.16 : x
  2. Step 2: Convert to fraction form
    253,778.08/380,637.68 = 66,804.16/x
  3. Step 3: Cross multiply
    253,778.08x = 380,637.68 × 66,804.16
  4. Step 4: Simplify right side
    253,778.08x = 25,428,180,476.75
  5. Step 5: Solve for x
    x = 25,428,180,476.75/253,778.08
  6. Step 6: Final answer
    x = 100,198.49

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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.