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Finding the Fourth Proportional to 491,807.25, 737,218.40 and 191,875.19

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Solution

The fourth proportional to 491,807.25, 737,218.40 and 191,875.19 is: 287,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,807.25 : 737,218.40 = 191,875.19 : x
  2. Step 2: Convert to fraction form
    491,807.25/737,218.40 = 191,875.19/x
  3. Step 3: Cross multiply
    491,807.25x = 737,218.40 × 191,875.19
  4. Step 4: Simplify right side
    491,807.25x = 141,453,915,926.03
  5. Step 5: Solve for x
    x = 141,453,915,926.03/491,807.25
  6. Step 6: Final answer
    x = 287,620.64

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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.