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Finding the Fourth Proportional to 304,785.41, 457,200 and 105,102.90

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Solution

The fourth proportional to 304,785.41, 457,200 and 105,102.90 is: 157,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,785.41 : 457,200 = 105,102.90 : x
  2. Step 2: Convert to fraction form
    304,785.41/457,200 = 105,102.90/x
  3. Step 3: Cross multiply
    304,785.41x = 457,200 × 105,102.90
  4. Step 4: Simplify right side
    304,785.41x = 48,053,045,880
  5. Step 5: Solve for x
    x = 48,053,045,880/304,785.41
  6. Step 6: Final answer
    x = 157,661.90

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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.