Home / 257,154.10-385,792.74-107,311.04

Finding the Fourth Proportional to 257,154.10, 385,792.74 and 107,311.04

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Solution

The fourth proportional to 257,154.10, 385,792.74 and 107,311.04 is: 160,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,154.10 : 385,792.74 = 107,311.04 : x
  2. Step 2: Convert to fraction form
    257,154.10/385,792.74 = 107,311.04/x
  3. Step 3: Cross multiply
    257,154.10x = 385,792.74 × 107,311.04
  4. Step 4: Simplify right side
    257,154.10x = 41,399,820,153.85
  5. Step 5: Solve for x
    x = 41,399,820,153.85/257,154.10
  6. Step 6: Final answer
    x = 160,992.26

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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.