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Finding the Fourth Proportional to 372,157.86, 513,573.03 and 202,388.34

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Solution

The fourth proportional to 372,157.86, 513,573.03 and 202,388.34 is: 279,293.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,157.86 : 513,573.03 = 202,388.34 : x
  2. Step 2: Convert to fraction form
    372,157.86/513,573.03 = 202,388.34/x
  3. Step 3: Cross multiply
    372,157.86x = 513,573.03 × 202,388.34
  4. Step 4: Simplify right side
    372,157.86x = 103,941,193,010.47
  5. Step 5: Solve for x
    x = 103,941,193,010.47/372,157.86
  6. Step 6: Final answer
    x = 279,293.29

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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.