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Finding the Fourth Proportional to 491,377.84, 737,064.32 and 191,888.84

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Solution

The fourth proportional to 491,377.84, 737,064.32 and 191,888.84 is: 287,832.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,377.84 : 737,064.32 = 191,888.84 : x
  2. Step 2: Convert to fraction form
    491,377.84/737,064.32 = 191,888.84/x
  3. Step 3: Cross multiply
    491,377.84x = 737,064.32 × 191,888.84
  4. Step 4: Simplify right side
    491,377.84x = 141,434,417,370.19
  5. Step 5: Solve for x
    x = 141,434,417,370.19/491,377.84
  6. Step 6: Final answer
    x = 287,832.31

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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.