Home / 306,837.36-423,217.44-204,811.38

Finding the Fourth Proportional to 306,837.36, 423,217.44 and 204,811.38

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Solution

The fourth proportional to 306,837.36, 423,217.44 and 204,811.38 is: 282,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,837.36 : 423,217.44 = 204,811.38 : x
  2. Step 2: Convert to fraction form
    306,837.36/423,217.44 = 204,811.38/x
  3. Step 3: Cross multiply
    306,837.36x = 423,217.44 × 204,811.38
  4. Step 4: Simplify right side
    306,837.36x = 86,679,747,926.47
  5. Step 5: Solve for x
    x = 86,679,747,926.47/306,837.36
  6. Step 6: Final answer
    x = 282,494.11

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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.