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Finding the Fourth Proportional to 379,704.72, 569,595.80 and 130,354.32

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Solution

The fourth proportional to 379,704.72, 569,595.80 and 130,354.32 is: 195,544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,704.72 : 569,595.80 = 130,354.32 : x
  2. Step 2: Convert to fraction form
    379,704.72/569,595.80 = 130,354.32/x
  3. Step 3: Cross multiply
    379,704.72x = 569,595.80 × 130,354.32
  4. Step 4: Simplify right side
    379,704.72x = 74,249,273,183.86
  5. Step 5: Solve for x
    x = 74,249,273,183.86/379,704.72
  6. Step 6: Final answer
    x = 195,544.77

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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.