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Finding the Fourth Proportional to 372,891.63, 514,587.83 and 203,125.76

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Solution

The fourth proportional to 372,891.63, 514,587.83 and 203,125.76 is: 280,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,891.63 : 514,587.83 = 203,125.76 : x
  2. Step 2: Convert to fraction form
    372,891.63/514,587.83 = 203,125.76/x
  3. Step 3: Cross multiply
    372,891.63x = 514,587.83 × 203,125.76
  4. Step 4: Simplify right side
    372,891.63x = 104,526,040,466.93
  5. Step 5: Solve for x
    x = 104,526,040,466.93/372,891.63
  6. Step 6: Final answer
    x = 280,312.11

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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.