Home / 257,899.74-355,885.23-143,180.66

Finding the Fourth Proportional to 257,899.74, 355,885.23 and 143,180.66

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Solution

The fourth proportional to 257,899.74, 355,885.23 and 143,180.66 is: 197,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,899.74 : 355,885.23 = 143,180.66 : x
  2. Step 2: Convert to fraction form
    257,899.74/355,885.23 = 143,180.66/x
  3. Step 3: Cross multiply
    257,899.74x = 355,885.23 × 143,180.66
  4. Step 4: Simplify right side
    257,899.74x = 50,955,880,336.23
  5. Step 5: Solve for x
    x = 50,955,880,336.23/257,899.74
  6. Step 6: Final answer
    x = 197,580.19

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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.