Home / 458,415.86-687,468.09-158,826.52

Finding the Fourth Proportional to 458,415.86, 687,468.09 and 158,826.52

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Solution

The fourth proportional to 458,415.86, 687,468.09 and 158,826.52 is: 238,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,415.86 : 687,468.09 = 158,826.52 : x
  2. Step 2: Convert to fraction form
    458,415.86/687,468.09 = 158,826.52/x
  3. Step 3: Cross multiply
    458,415.86x = 687,468.09 × 158,826.52
  4. Step 4: Simplify right side
    458,415.86x = 109,188,164,460.58
  5. Step 5: Solve for x
    x = 109,188,164,460.58/458,415.86
  6. Step 6: Final answer
    x = 238,185.83

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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.