Home / 257,904.90-355,892.74-143,176.85

Finding the Fourth Proportional to 257,904.90, 355,892.74 and 143,176.85

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Solution

The fourth proportional to 257,904.90, 355,892.74 and 143,176.85 is: 197,575.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,904.90 : 355,892.74 = 143,176.85 : x
  2. Step 2: Convert to fraction form
    257,904.90/355,892.74 = 143,176.85/x
  3. Step 3: Cross multiply
    257,904.90x = 355,892.74 × 143,176.85
  4. Step 4: Simplify right side
    257,904.90x = 50,955,602,120.93
  5. Step 5: Solve for x
    x = 50,955,602,120.93/257,904.90
  6. Step 6: Final answer
    x = 197,575.16

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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.