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Finding the Fourth Proportional to 289,325.72, 433,778.29 and 120,894.26

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Solution

The fourth proportional to 289,325.72, 433,778.29 and 120,894.26 is: 181,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,325.72 : 433,778.29 = 120,894.26 : x
  2. Step 2: Convert to fraction form
    289,325.72/433,778.29 = 120,894.26/x
  3. Step 3: Cross multiply
    289,325.72x = 433,778.29 × 120,894.26
  4. Step 4: Simplify right side
    289,325.72x = 52,441,302,902.49
  5. Step 5: Solve for x
    x = 52,441,302,902.49/289,325.72
  6. Step 6: Final answer
    x = 181,253.51

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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.