Home / 306,854.04-423,589.50-206,310.36

Finding the Fourth Proportional to 306,854.04, 423,589.50 and 206,310.36

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Solution

The fourth proportional to 306,854.04, 423,589.50 and 206,310.36 is: 284,796.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,854.04 : 423,589.50 = 206,310.36 : x
  2. Step 2: Convert to fraction form
    306,854.04/423,589.50 = 206,310.36/x
  3. Step 3: Cross multiply
    306,854.04x = 423,589.50 × 206,310.36
  4. Step 4: Simplify right side
    306,854.04x = 87,390,902,237.22
  5. Step 5: Solve for x
    x = 87,390,902,237.22/306,854.04
  6. Step 6: Final answer
    x = 284,796.32

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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.