Home / 257,155.10-385,794.24-107,312.04

Finding the Fourth Proportional to 257,155.10, 385,794.24 and 107,312.04

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Solution

The fourth proportional to 257,155.10, 385,794.24 and 107,312.04 is: 160,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,155.10 : 385,794.24 = 107,312.04 : x
  2. Step 2: Convert to fraction form
    257,155.10/385,794.24 = 107,312.04/x
  3. Step 3: Cross multiply
    257,155.10x = 385,794.24 × 107,312.04
  4. Step 4: Simplify right side
    257,155.10x = 41,400,366,914.65
  5. Step 5: Solve for x
    x = 41,400,366,914.65/257,155.10
  6. Step 6: Final answer
    x = 160,993.76

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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.