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Finding the Fourth Proportional to 350,834.40, 526,640.40 and 217,864.80

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Solution

The fourth proportional to 350,834.40, 526,640.40 and 217,864.80 is: 327,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,834.40 : 526,640.40 = 217,864.80 : x
  2. Step 2: Convert to fraction form
    350,834.40/526,640.40 = 217,864.80/x
  3. Step 3: Cross multiply
    350,834.40x = 526,640.40 × 217,864.80
  4. Step 4: Simplify right side
    350,834.40x = 114,736,405,417.92
  5. Step 5: Solve for x
    x = 114,736,405,417.92/350,834.40
  6. Step 6: Final answer
    x = 327,038.64

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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.