Home / 426,157.18-639,166-173,427.46

Finding the Fourth Proportional to 426,157.18, 639,166 and 173,427.46

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Solution

The fourth proportional to 426,157.18, 639,166 and 173,427.46 is: 260,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,157.18 : 639,166 = 173,427.46 : x
  2. Step 2: Convert to fraction form
    426,157.18/639,166 = 173,427.46/x
  3. Step 3: Cross multiply
    426,157.18x = 639,166 × 173,427.46
  4. Step 4: Simplify right side
    426,157.18x = 110,848,935,898.36
  5. Step 5: Solve for x
    x = 110,848,935,898.36/426,157.18
  6. Step 6: Final answer
    x = 260,112.80

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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.