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Finding the Fourth Proportional to 371,675.08, 512,952.56 and 208,347.20

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Solution

The fourth proportional to 371,675.08, 512,952.56 and 208,347.20 is: 287,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,675.08 : 512,952.56 = 208,347.20 : x
  2. Step 2: Convert to fraction form
    371,675.08/512,952.56 = 208,347.20/x
  3. Step 3: Cross multiply
    371,675.08x = 512,952.56 × 208,347.20
  4. Step 4: Simplify right side
    371,675.08x = 106,872,229,608.83
  5. Step 5: Solve for x
    x = 106,872,229,608.83/371,675.08
  6. Step 6: Final answer
    x = 287,542.09

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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.