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Finding the Fourth Proportional to 426,165.60, 638,805.60 and 173,337.60

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Solution

The fourth proportional to 426,165.60, 638,805.60 and 173,337.60 is: 259,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,165.60 : 638,805.60 = 173,337.60 : x
  2. Step 2: Convert to fraction form
    426,165.60/638,805.60 = 173,337.60/x
  3. Step 3: Cross multiply
    426,165.60x = 638,805.60 × 173,337.60
  4. Step 4: Simplify right side
    426,165.60x = 110,729,029,570.56
  5. Step 5: Solve for x
    x = 110,729,029,570.56/426,165.60
  6. Step 6: Final answer
    x = 259,826.30

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1.5x scale

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.