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Finding the Fourth Proportional to 304,756, 457,045.74 and 91,515.30

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Solution

The fourth proportional to 304,756, 457,045.74 and 91,515.30 is: 137,246.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,756 : 457,045.74 = 91,515.30 : x
  2. Step 2: Convert to fraction form
    304,756/457,045.74 = 91,515.30/x
  3. Step 3: Cross multiply
    304,756x = 457,045.74 × 91,515.30
  4. Step 4: Simplify right side
    304,756x = 41,826,678,009.82
  5. Step 5: Solve for x
    x = 41,826,678,009.82/304,756
  6. Step 6: Final answer
    x = 137,246.45

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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.