Home / 399,287.04-551,013.26-217,998.96

Finding the Fourth Proportional to 399,287.04, 551,013.26 and 217,998.96

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Solution

The fourth proportional to 399,287.04, 551,013.26 and 217,998.96 is: 300,837.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,287.04 : 551,013.26 = 217,998.96 : x
  2. Step 2: Convert to fraction form
    399,287.04/551,013.26 = 217,998.96/x
  3. Step 3: Cross multiply
    399,287.04x = 551,013.26 × 217,998.96
  4. Step 4: Simplify right side
    399,287.04x = 120,120,317,626.21
  5. Step 5: Solve for x
    x = 120,120,317,626.21/399,287.04
  6. Step 6: Final answer
    x = 300,837.01

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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.