Home / 426,164.50-639,333.60-173,442.70

Finding the Fourth Proportional to 426,164.50, 639,333.60 and 173,442.70

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Solution

The fourth proportional to 426,164.50, 639,333.60 and 173,442.70 is: 260,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,164.50 : 639,333.60 = 173,442.70 : x
  2. Step 2: Convert to fraction form
    426,164.50/639,333.60 = 173,442.70/x
  3. Step 3: Cross multiply
    426,164.50x = 639,333.60 × 173,442.70
  4. Step 4: Simplify right side
    426,164.50x = 110,887,745,784.72
  5. Step 5: Solve for x
    x = 110,887,745,784.72/426,164.50
  6. Step 6: Final answer
    x = 260,199.40

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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.