Home / 351,137.36-526,729.40-123,405.43

Finding the Fourth Proportional to 351,137.36, 526,729.40 and 123,405.43

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Solution

The fourth proportional to 351,137.36, 526,729.40 and 123,405.43 is: 185,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,137.36 : 526,729.40 = 123,405.43 : x
  2. Step 2: Convert to fraction form
    351,137.36/526,729.40 = 123,405.43/x
  3. Step 3: Cross multiply
    351,137.36x = 526,729.40 × 123,405.43
  4. Step 4: Simplify right side
    351,137.36x = 65,001,266,166.79
  5. Step 5: Solve for x
    x = 65,001,266,166.79/351,137.36
  6. Step 6: Final answer
    x = 185,116.35

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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.