Home / 447,977.80-672,064.02-208,238.86

Finding the Fourth Proportional to 447,977.80, 672,064.02 and 208,238.86

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Solution

The fourth proportional to 447,977.80, 672,064.02 and 208,238.86 is: 312,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,977.80 : 672,064.02 = 208,238.86 : x
  2. Step 2: Convert to fraction form
    447,977.80/672,064.02 = 208,238.86/x
  3. Step 3: Cross multiply
    447,977.80x = 672,064.02 × 208,238.86
  4. Step 4: Simplify right side
    447,977.80x = 139,949,845,371.82
  5. Step 5: Solve for x
    x = 139,949,845,371.82/447,977.80
  6. Step 6: Final answer
    x = 312,403.53

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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.