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Finding the Fourth Proportional to 373,148.65, 514,939.44 and 209,805.31

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Solution

The fourth proportional to 373,148.65, 514,939.44 and 209,805.31 is: 289,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,148.65 : 514,939.44 = 209,805.31 : x
  2. Step 2: Convert to fraction form
    373,148.65/514,939.44 = 209,805.31/x
  3. Step 3: Cross multiply
    373,148.65x = 514,939.44 × 209,805.31
  4. Step 4: Simplify right side
    373,148.65x = 108,037,028,840.43
  5. Step 5: Solve for x
    x = 108,037,028,840.43/373,148.65
  6. Step 6: Final answer
    x = 289,528.12

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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.