Home / 407,135.18-561,849.66-223,372.52

Finding the Fourth Proportional to 407,135.18, 561,849.66 and 223,372.52

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Solution

The fourth proportional to 407,135.18, 561,849.66 and 223,372.52 is: 308,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,135.18 : 561,849.66 = 223,372.52 : x
  2. Step 2: Convert to fraction form
    407,135.18/561,849.66 = 223,372.52/x
  3. Step 3: Cross multiply
    407,135.18x = 561,849.66 × 223,372.52
  4. Step 4: Simplify right side
    407,135.18x = 125,501,774,415.34
  5. Step 5: Solve for x
    x = 125,501,774,415.34/407,135.18
  6. Step 6: Final answer
    x = 308,255.78

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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.