Home / 372,212.90-513,628.53-202,443.38

Finding the Fourth Proportional to 372,212.90, 513,628.53 and 202,443.38

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Solution

The fourth proportional to 372,212.90, 513,628.53 and 202,443.38 is: 279,358.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,212.90 : 513,628.53 = 202,443.38 : x
  2. Step 2: Convert to fraction form
    372,212.90/513,628.53 = 202,443.38/x
  3. Step 3: Cross multiply
    372,212.90x = 513,628.53 × 202,443.38
  4. Step 4: Simplify right side
    372,212.90x = 103,980,695,677.63
  5. Step 5: Solve for x
    x = 103,980,695,677.63/372,212.90
  6. Step 6: Final answer
    x = 279,358.12

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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.