Home / 426,119.34-639,423.22-173,353.16

Finding the Fourth Proportional to 426,119.34, 639,423.22 and 173,353.16

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Solution

The fourth proportional to 426,119.34, 639,423.22 and 173,353.16 is: 260,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,119.34 : 639,423.22 = 173,353.16 : x
  2. Step 2: Convert to fraction form
    426,119.34/639,423.22 = 173,353.16/x
  3. Step 3: Cross multiply
    426,119.34x = 639,423.22 × 173,353.16
  4. Step 4: Simplify right side
    426,119.34x = 110,846,035,764.38
  5. Step 5: Solve for x
    x = 110,846,035,764.38/426,119.34
  6. Step 6: Final answer
    x = 260,129.09

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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.