Home / 309,426.42-464,140.04-84,788.85

Finding the Fourth Proportional to 309,426.42, 464,140.04 and 84,788.85

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Solution

The fourth proportional to 309,426.42, 464,140.04 and 84,788.85 is: 127,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,426.42 : 464,140.04 = 84,788.85 : x
  2. Step 2: Convert to fraction form
    309,426.42/464,140.04 = 84,788.85/x
  3. Step 3: Cross multiply
    309,426.42x = 464,140.04 × 84,788.85
  4. Step 4: Simplify right side
    309,426.42x = 39,353,899,806.61
  5. Step 5: Solve for x
    x = 39,353,899,806.61/309,426.42
  6. Step 6: Final answer
    x = 127,183.39

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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.