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Finding the Fourth Proportional to 372,280.78, 513,747.93 and 202,514.50

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Solution

The fourth proportional to 372,280.78, 513,747.93 and 202,514.50 is: 279,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,280.78 : 513,747.93 = 202,514.50 : x
  2. Step 2: Convert to fraction form
    372,280.78/513,747.93 = 202,514.50/x
  3. Step 3: Cross multiply
    372,280.78x = 513,747.93 × 202,514.50
  4. Step 4: Simplify right side
    372,280.78x = 104,041,405,169.99
  5. Step 5: Solve for x
    x = 104,041,405,169.99/372,280.78
  6. Step 6: Final answer
    x = 279,470.26

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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.