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Finding the Fourth Proportional to 372,881.88, 514,584.94 and 203,115.64

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Solution

The fourth proportional to 372,881.88, 514,584.94 and 203,115.64 is: 280,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,881.88 : 514,584.94 = 203,115.64 : x
  2. Step 2: Convert to fraction form
    372,881.88/514,584.94 = 203,115.64/x
  3. Step 3: Cross multiply
    372,881.88x = 514,584.94 × 203,115.64
  4. Step 4: Simplify right side
    372,881.88x = 104,520,249,422.46
  5. Step 5: Solve for x
    x = 104,520,249,422.46/372,881.88
  6. Step 6: Final answer
    x = 280,303.91

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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.