Home / 289,038.30-433,265.85-131,379.90

Finding the Fourth Proportional to 289,038.30, 433,265.85 and 131,379.90

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Solution

The fourth proportional to 289,038.30, 433,265.85 and 131,379.90 is: 196,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,038.30 : 433,265.85 = 131,379.90 : x
  2. Step 2: Convert to fraction form
    289,038.30/433,265.85 = 131,379.90/x
  3. Step 3: Cross multiply
    289,038.30x = 433,265.85 × 131,379.90
  4. Step 4: Simplify right side
    289,038.30x = 56,922,424,046.42
  5. Step 5: Solve for x
    x = 56,922,424,046.42/289,038.30
  6. Step 6: Final answer
    x = 196,937.31

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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.