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Finding the Fourth Proportional to 491,807.40, 737,538.30 and 225,695.40

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Solution

The fourth proportional to 491,807.40, 737,538.30 and 225,695.40 is: 338,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,807.40 : 737,538.30 = 225,695.40 : x
  2. Step 2: Convert to fraction form
    491,807.40/737,538.30 = 225,695.40/x
  3. Step 3: Cross multiply
    491,807.40x = 737,538.30 × 225,695.40
  4. Step 4: Simplify right side
    491,807.40x = 166,459,001,633.82
  5. Step 5: Solve for x
    x = 166,459,001,633.82/491,807.40
  6. Step 6: Final answer
    x = 338,463.80

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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.