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Finding the Fourth Proportional to 300,068.40, 449,315.28 and 194,567.52

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Solution

The fourth proportional to 300,068.40, 449,315.28 and 194,567.52 is: 291,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,068.40 : 449,315.28 = 194,567.52 : x
  2. Step 2: Convert to fraction form
    300,068.40/449,315.28 = 194,567.52/x
  3. Step 3: Cross multiply
    300,068.40x = 449,315.28 × 194,567.52
  4. Step 4: Simplify right side
    300,068.40x = 87,422,159,727.71
  5. Step 5: Solve for x
    x = 87,422,159,727.71/300,068.40
  6. Step 6: Final answer
    x = 291,340.77

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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.