Home / 306,837.30-423,217.35-204,811.32

Finding the Fourth Proportional to 306,837.30, 423,217.35 and 204,811.32

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Solution

The fourth proportional to 306,837.30, 423,217.35 and 204,811.32 is: 282,494.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,837.30 : 423,217.35 = 204,811.32 : x
  2. Step 2: Convert to fraction form
    306,837.30/423,217.35 = 204,811.32/x
  3. Step 3: Cross multiply
    306,837.30x = 423,217.35 × 204,811.32
  4. Step 4: Simplify right side
    306,837.30x = 86,679,704,100.40
  5. Step 5: Solve for x
    x = 86,679,704,100.40/306,837.30
  6. Step 6: Final answer
    x = 282,494.03

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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.