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Finding the Fourth Proportional to 372,119.64, 513,538.62 and 213,174.36

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Solution

The fourth proportional to 372,119.64, 513,538.62 and 213,174.36 is: 294,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,119.64 : 513,538.62 = 213,174.36 : x
  2. Step 2: Convert to fraction form
    372,119.64/513,538.62 = 213,174.36/x
  3. Step 3: Cross multiply
    372,119.64x = 513,538.62 × 213,174.36
  4. Step 4: Simplify right side
    372,119.64x = 109,473,266,653.78
  5. Step 5: Solve for x
    x = 109,473,266,653.78/372,119.64
  6. Step 6: Final answer
    x = 294,188.36

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1.5x scale

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.