Home / 458,416.11-687,468.46-158,826.77

Finding the Fourth Proportional to 458,416.11, 687,468.46 and 158,826.77

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Solution

The fourth proportional to 458,416.11, 687,468.46 and 158,826.77 is: 238,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,416.11 : 687,468.46 = 158,826.77 : x
  2. Step 2: Convert to fraction form
    458,416.11/687,468.46 = 158,826.77/x
  3. Step 3: Cross multiply
    458,416.11x = 687,468.46 × 158,826.77
  4. Step 4: Simplify right side
    458,416.11x = 109,188,390,747.20
  5. Step 5: Solve for x
    x = 109,188,390,747.20/458,416.11
  6. Step 6: Final answer
    x = 238,186.20

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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.