Home / 543,742.72-815,622.28-188,768.02

Finding the Fourth Proportional to 543,742.72, 815,622.28 and 188,768.02

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Solution

The fourth proportional to 543,742.72, 815,622.28 and 188,768.02 is: 283,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,742.72 : 815,622.28 = 188,768.02 : x
  2. Step 2: Convert to fraction form
    543,742.72/815,622.28 = 188,768.02/x
  3. Step 3: Cross multiply
    543,742.72x = 815,622.28 × 188,768.02
  4. Step 4: Simplify right side
    543,742.72x = 153,963,401,296.35
  5. Step 5: Solve for x
    x = 153,963,401,296.35/543,742.72
  6. Step 6: Final answer
    x = 283,154.87

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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.