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Finding the Fourth Proportional to 372,879.88, 514,582.18 and 203,113.64

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Solution

The fourth proportional to 372,879.88, 514,582.18 and 203,113.64 is: 280,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,879.88 : 514,582.18 = 203,113.64 : x
  2. Step 2: Convert to fraction form
    372,879.88/514,582.18 = 203,113.64/x
  3. Step 3: Cross multiply
    372,879.88x = 514,582.18 × 203,113.64
  4. Step 4: Simplify right side
    372,879.88x = 104,518,659,658.94
  5. Step 5: Solve for x
    x = 104,518,659,658.94/372,879.88
  6. Step 6: Final answer
    x = 280,301.15

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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.