Home / 257,827.23-355,823.01-143,116.65

Finding the Fourth Proportional to 257,827.23, 355,823.01 and 143,116.65

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Solution

The fourth proportional to 257,827.23, 355,823.01 and 143,116.65 is: 197,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,827.23 : 355,823.01 = 143,116.65 : x
  2. Step 2: Convert to fraction form
    257,827.23/355,823.01 = 143,116.65/x
  3. Step 3: Cross multiply
    257,827.23x = 355,823.01 × 143,116.65
  4. Step 4: Simplify right side
    257,827.23x = 50,924,197,184.12
  5. Step 5: Solve for x
    x = 50,924,197,184.12/257,827.23
  6. Step 6: Final answer
    x = 197,512.87

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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.