Home / 257,148.65-385,784.57-107,305.59

Finding the Fourth Proportional to 257,148.65, 385,784.57 and 107,305.59

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Solution

The fourth proportional to 257,148.65, 385,784.57 and 107,305.59 is: 160,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,148.65 : 385,784.57 = 107,305.59 : x
  2. Step 2: Convert to fraction form
    257,148.65/385,784.57 = 107,305.59/x
  3. Step 3: Cross multiply
    257,148.65x = 385,784.57 × 107,305.59
  4. Step 4: Simplify right side
    257,148.65x = 41,396,840,360.22
  5. Step 5: Solve for x
    x = 41,396,840,360.22/257,148.65
  6. Step 6: Final answer
    x = 160,984.08

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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.