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Finding the Fourth Proportional to 351,285.30, 526,929.30 and 85,045.41

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Solution

The fourth proportional to 351,285.30, 526,929.30 and 85,045.41 is: 127,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,285.30 : 526,929.30 = 85,045.41 : x
  2. Step 2: Convert to fraction form
    351,285.30/526,929.30 = 85,045.41/x
  3. Step 3: Cross multiply
    351,285.30x = 526,929.30 × 85,045.41
  4. Step 4: Simplify right side
    351,285.30x = 44,812,918,359.51
  5. Step 5: Solve for x
    x = 44,812,918,359.51/351,285.30
  6. Step 6: Final answer
    x = 127,568.44

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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.