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Finding the Fourth Proportional to 372,697.31, 514,322.30 and 202,931.44

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Solution

The fourth proportional to 372,697.31, 514,322.30 and 202,931.44 is: 280,045.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,697.31 : 514,322.30 = 202,931.44 : x
  2. Step 2: Convert to fraction form
    372,697.31/514,322.30 = 202,931.44/x
  3. Step 3: Cross multiply
    372,697.31x = 514,322.30 × 202,931.44
  4. Step 4: Simplify right side
    372,697.31x = 104,372,162,662.65
  5. Step 5: Solve for x
    x = 104,372,162,662.65/372,697.31
  6. Step 6: Final answer
    x = 280,045.39

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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.