Home / 425,325.72-638,087.34-144,845.40

Finding the Fourth Proportional to 425,325.72, 638,087.34 and 144,845.40

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Solution

The fourth proportional to 425,325.72, 638,087.34 and 144,845.40 is: 217,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,325.72 : 638,087.34 = 144,845.40 : x
  2. Step 2: Convert to fraction form
    425,325.72/638,087.34 = 144,845.40/x
  3. Step 3: Cross multiply
    425,325.72x = 638,087.34 × 144,845.40
  4. Step 4: Simplify right side
    425,325.72x = 92,424,015,997.24
  5. Step 5: Solve for x
    x = 92,424,015,997.24/425,325.72
  6. Step 6: Final answer
    x = 217,301.73

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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.