Home / 261,815.90-361,519.00-213,425.42

Finding the Fourth Proportional to 261,815.90, 361,519.00 and 213,425.42

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Solution

The fourth proportional to 261,815.90, 361,519.00 and 213,425.42 is: 294,700.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,815.90 : 361,519.00 = 213,425.42 : x
  2. Step 2: Convert to fraction form
    261,815.90/361,519.00 = 213,425.42/x
  3. Step 3: Cross multiply
    261,815.90x = 361,519.00 × 213,425.42
  4. Step 4: Simplify right side
    261,815.90x = 77,157,342,071.82
  5. Step 5: Solve for x
    x = 77,157,342,071.82/261,815.90
  6. Step 6: Final answer
    x = 294,700.76

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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.