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Finding the Fourth Proportional to 286,313.89, 429,455.04 and 117,791.57

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Solution

The fourth proportional to 286,313.89, 429,455.04 and 117,791.57 is: 176,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,313.89 : 429,455.04 = 117,791.57 : x
  2. Step 2: Convert to fraction form
    286,313.89/429,455.04 = 117,791.57/x
  3. Step 3: Cross multiply
    286,313.89x = 429,455.04 × 117,791.57
  4. Step 4: Simplify right side
    286,313.89x = 50,586,183,406.01
  5. Step 5: Solve for x
    x = 50,586,183,406.01/286,313.89
  6. Step 6: Final answer
    x = 176,680.86

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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.