Home / 367,621.51-551,430.23-143,138.11

Finding the Fourth Proportional to 367,621.51, 551,430.23 and 143,138.11

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Solution

The fourth proportional to 367,621.51, 551,430.23 and 143,138.11 is: 214,706.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,621.51 : 551,430.23 = 143,138.11 : x
  2. Step 2: Convert to fraction form
    367,621.51/551,430.23 = 143,138.11/x
  3. Step 3: Cross multiply
    367,621.51x = 551,430.23 × 143,138.11
  4. Step 4: Simplify right side
    367,621.51x = 78,930,680,919.07
  5. Step 5: Solve for x
    x = 78,930,680,919.07/367,621.51
  6. Step 6: Final answer
    x = 214,706.37

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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.