Home / 257,837.66-355,810.45-143,109.62

Finding the Fourth Proportional to 257,837.66, 355,810.45 and 143,109.62

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Solution

The fourth proportional to 257,837.66, 355,810.45 and 143,109.62 is: 197,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,837.66 : 355,810.45 = 143,109.62 : x
  2. Step 2: Convert to fraction form
    257,837.66/355,810.45 = 143,109.62/x
  3. Step 3: Cross multiply
    257,837.66x = 355,810.45 × 143,109.62
  4. Step 4: Simplify right side
    257,837.66x = 50,919,898,291.53
  5. Step 5: Solve for x
    x = 50,919,898,291.53/257,837.66
  6. Step 6: Final answer
    x = 197,488.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.