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Finding the Fourth Proportional to 491,805.40, 737,535.30 and 225,693.40

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Solution

The fourth proportional to 491,805.40, 737,535.30 and 225,693.40 is: 338,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,805.40 : 737,535.30 = 225,693.40 : x
  2. Step 2: Convert to fraction form
    491,805.40/737,535.30 = 225,693.40/x
  3. Step 3: Cross multiply
    491,805.40x = 737,535.30 × 225,693.40
  4. Step 4: Simplify right side
    491,805.40x = 166,456,849,477.02
  5. Step 5: Solve for x
    x = 166,456,849,477.02/491,805.40
  6. Step 6: Final answer
    x = 338,460.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.