Home / 386,016.02-578,383.76-273,136.72

Finding the Fourth Proportional to 386,016.02, 578,383.76 and 273,136.72

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Solution

The fourth proportional to 386,016.02, 578,383.76 and 273,136.72 is: 409,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,016.02 : 578,383.76 = 273,136.72 : x
  2. Step 2: Convert to fraction form
    386,016.02/578,383.76 = 273,136.72/x
  3. Step 3: Cross multiply
    386,016.02x = 578,383.76 × 273,136.72
  4. Step 4: Simplify right side
    386,016.02x = 157,977,843,107.67
  5. Step 5: Solve for x
    x = 157,977,843,107.67/386,016.02
  6. Step 6: Final answer
    x = 409,252.04

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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.