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Finding the Fourth Proportional to 351,296.94, 526,885.45 and 126,612.66

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Solution

The fourth proportional to 351,296.94, 526,885.45 and 126,612.66 is: 189,897.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,296.94 : 526,885.45 = 126,612.66 : x
  2. Step 2: Convert to fraction form
    351,296.94/526,885.45 = 126,612.66/x
  3. Step 3: Cross multiply
    351,296.94x = 526,885.45 × 126,612.66
  4. Step 4: Simplify right side
    351,296.94x = 66,710,368,339.80
  5. Step 5: Solve for x
    x = 66,710,368,339.80/351,296.94
  6. Step 6: Final answer
    x = 189,897.38

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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.