Home / 304,939.07-457,435.02-80,297.72

Finding the Fourth Proportional to 304,939.07, 457,435.02 and 80,297.72

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Solution

The fourth proportional to 304,939.07, 457,435.02 and 80,297.72 is: 120,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,939.07 : 457,435.02 = 80,297.72 : x
  2. Step 2: Convert to fraction form
    304,939.07/457,435.02 = 80,297.72/x
  3. Step 3: Cross multiply
    304,939.07x = 457,435.02 × 80,297.72
  4. Step 4: Simplify right side
    304,939.07x = 36,730,987,168.10
  5. Step 5: Solve for x
    x = 36,730,987,168.10/304,939.07
  6. Step 6: Final answer
    x = 120,453.53

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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.