Home / 257,248.08-385,872.27-107,406.72

Finding the Fourth Proportional to 257,248.08, 385,872.27 and 107,406.72

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Solution

The fourth proportional to 257,248.08, 385,872.27 and 107,406.72 is: 161,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,248.08 : 385,872.27 = 107,406.72 : x
  2. Step 2: Convert to fraction form
    257,248.08/385,872.27 = 107,406.72/x
  3. Step 3: Cross multiply
    257,248.08x = 385,872.27 × 107,406.72
  4. Step 4: Simplify right side
    257,248.08x = 41,445,274,859.65
  5. Step 5: Solve for x
    x = 41,445,274,859.65/257,248.08
  6. Step 6: Final answer
    x = 161,110.14

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1.5x scale

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.