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Finding the Fourth Proportional to 372,920.86, 514,667.96 and 227,718.64

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Solution

The fourth proportional to 372,920.86, 514,667.96 and 227,718.64 is: 314,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,920.86 : 514,667.96 = 227,718.64 : x
  2. Step 2: Convert to fraction form
    372,920.86/514,667.96 = 227,718.64/x
  3. Step 3: Cross multiply
    372,920.86x = 514,667.96 × 227,718.64
  4. Step 4: Simplify right side
    372,920.86x = 117,199,487,902.77
  5. Step 5: Solve for x
    x = 117,199,487,902.77/372,920.86
  6. Step 6: Final answer
    x = 314,274.42

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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.