Home / 353,018.34-487,163.03-202,144.50

Finding the Fourth Proportional to 353,018.34, 487,163.03 and 202,144.50

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Solution

The fourth proportional to 353,018.34, 487,163.03 and 202,144.50 is: 278,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,018.34 : 487,163.03 = 202,144.50 : x
  2. Step 2: Convert to fraction form
    353,018.34/487,163.03 = 202,144.50/x
  3. Step 3: Cross multiply
    353,018.34x = 487,163.03 × 202,144.50
  4. Step 4: Simplify right side
    353,018.34x = 98,477,326,107.11
  5. Step 5: Solve for x
    x = 98,477,326,107.11/353,018.34
  6. Step 6: Final answer
    x = 278,958.10

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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.