Home / 372,325.41-513,812.57-221,393.25

Finding the Fourth Proportional to 372,325.41, 513,812.57 and 221,393.25

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Solution

The fourth proportional to 372,325.41, 513,812.57 and 221,393.25 is: 305,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,325.41 : 513,812.57 = 221,393.25 : x
  2. Step 2: Convert to fraction form
    372,325.41/513,812.57 = 221,393.25/x
  3. Step 3: Cross multiply
    372,325.41x = 513,812.57 × 221,393.25
  4. Step 4: Simplify right side
    372,325.41x = 113,754,633,656.19
  5. Step 5: Solve for x
    x = 113,754,633,656.19/372,325.41
  6. Step 6: Final answer
    x = 305,524.77

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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.