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Finding the Fourth Proportional to 372,337.06, 513,803.41 and 208,978.39

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Solution

The fourth proportional to 372,337.06, 513,803.41 and 208,978.39 is: 288,377.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,337.06 : 513,803.41 = 208,978.39 : x
  2. Step 2: Convert to fraction form
    372,337.06/513,803.41 = 208,978.39/x
  3. Step 3: Cross multiply
    372,337.06x = 513,803.41 × 208,978.39
  4. Step 4: Simplify right side
    372,337.06x = 107,373,809,398.31
  5. Step 5: Solve for x
    x = 107,373,809,398.31/372,337.06
  6. Step 6: Final answer
    x = 288,377.98

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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.