Home / 372,123.37-513,514.75-210,989.31

Finding the Fourth Proportional to 372,123.37, 513,514.75 and 210,989.31

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Solution

The fourth proportional to 372,123.37, 513,514.75 and 210,989.31 is: 291,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,123.37 : 513,514.75 = 210,989.31 : x
  2. Step 2: Convert to fraction form
    372,123.37/513,514.75 = 210,989.31/x
  3. Step 3: Cross multiply
    372,123.37x = 513,514.75 × 210,989.31
  4. Step 4: Simplify right side
    372,123.37x = 108,346,122,249.85
  5. Step 5: Solve for x
    x = 108,346,122,249.85/372,123.37
  6. Step 6: Final answer
    x = 291,156.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.