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Finding the Fourth Proportional to 351,100.84, 526,526.71 and 126,400.94

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Solution

The fourth proportional to 351,100.84, 526,526.71 and 126,400.94 is: 189,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,100.84 : 526,526.71 = 126,400.94 : x
  2. Step 2: Convert to fraction form
    351,100.84/526,526.71 = 126,400.94/x
  3. Step 3: Cross multiply
    351,100.84x = 526,526.71 × 126,400.94
  4. Step 4: Simplify right side
    351,100.84x = 66,553,471,079.11
  5. Step 5: Solve for x
    x = 66,553,471,079.11/351,100.84
  6. Step 6: Final answer
    x = 189,556.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.