Home / 372,072.93-513,531.93-210,928.60

Finding the Fourth Proportional to 372,072.93, 513,531.93 and 210,928.60

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Solution

The fourth proportional to 372,072.93, 513,531.93 and 210,928.60 is: 291,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,072.93 : 513,531.93 = 210,928.60 : x
  2. Step 2: Convert to fraction form
    372,072.93/513,531.93 = 210,928.60/x
  3. Step 3: Cross multiply
    372,072.93x = 513,531.93 × 210,928.60
  4. Step 4: Simplify right side
    372,072.93x = 108,318,571,050.20
  5. Step 5: Solve for x
    x = 108,318,571,050.20/372,072.93
  6. Step 6: Final answer
    x = 291,121.88

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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.