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Finding the Fourth Proportional to 245,605.78, 368,408.67 and 87,824.67

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Solution

The fourth proportional to 245,605.78, 368,408.67 and 87,824.67 is: 131,737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,605.78 : 368,408.67 = 87,824.67 : x
  2. Step 2: Convert to fraction form
    245,605.78/368,408.67 = 87,824.67/x
  3. Step 3: Cross multiply
    245,605.78x = 368,408.67 × 87,824.67
  4. Step 4: Simplify right side
    245,605.78x = 32,355,369,867.89
  5. Step 5: Solve for x
    x = 32,355,369,867.89/245,605.78
  6. Step 6: Final answer
    x = 131,737.01

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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.