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Finding the Fourth Proportional to 351,246.51, 526,869.79 and 85,007.07

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Solution

The fourth proportional to 351,246.51, 526,869.79 and 85,007.07 is: 127,510.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,246.51 : 526,869.79 = 85,007.07 : x
  2. Step 2: Convert to fraction form
    351,246.51/526,869.79 = 85,007.07/x
  3. Step 3: Cross multiply
    351,246.51x = 526,869.79 × 85,007.07
  4. Step 4: Simplify right side
    351,246.51x = 44,787,656,906.90
  5. Step 5: Solve for x
    x = 44,787,656,906.90/351,246.51
  6. Step 6: Final answer
    x = 127,510.61

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1.5x scale

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.