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Finding the Fourth Proportional to 351,050.28, 526,870.81 and 328,906.90

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Solution

The fourth proportional to 351,050.28, 526,870.81 and 328,906.90 is: 493,637.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,050.28 : 526,870.81 = 328,906.90 : x
  2. Step 2: Convert to fraction form
    351,050.28/526,870.81 = 328,906.90/x
  3. Step 3: Cross multiply
    351,050.28x = 526,870.81 × 328,906.90
  4. Step 4: Simplify right side
    351,050.28x = 173,291,444,817.59
  5. Step 5: Solve for x
    x = 173,291,444,817.59/351,050.28
  6. Step 6: Final answer
    x = 493,637.11

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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.