Home / 257,150.50-385,787.31-107,307.42

Finding the Fourth Proportional to 257,150.50, 385,787.31 and 107,307.42

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Solution

The fourth proportional to 257,150.50, 385,787.31 and 107,307.42 is: 160,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,150.50 : 385,787.31 = 107,307.42 : x
  2. Step 2: Convert to fraction form
    257,150.50/385,787.31 = 107,307.42/x
  3. Step 3: Cross multiply
    257,150.50x = 385,787.31 × 107,307.42
  4. Step 4: Simplify right side
    257,150.50x = 41,397,839,055.74
  5. Step 5: Solve for x
    x = 41,397,839,055.74/257,150.50
  6. Step 6: Final answer
    x = 160,986.81

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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.