Home / 257,205.90-385,869.63-107,362.92

Finding the Fourth Proportional to 257,205.90, 385,869.63 and 107,362.92

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Solution

The fourth proportional to 257,205.90, 385,869.63 and 107,362.92 is: 161,069.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,205.90 : 385,869.63 = 107,362.92 : x
  2. Step 2: Convert to fraction form
    257,205.90/385,869.63 = 107,362.92/x
  3. Step 3: Cross multiply
    257,205.90x = 385,869.63 × 107,362.92
  4. Step 4: Simplify right side
    257,205.90x = 41,428,090,216.12
  5. Step 5: Solve for x
    x = 41,428,090,216.12/257,205.90
  6. Step 6: Final answer
    x = 161,069.75

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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.