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Finding the Fourth Proportional to 255,554.92, 383,350.92 and 103,679.08

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Solution

The fourth proportional to 255,554.92, 383,350.92 and 103,679.08 is: 155,526.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,554.92 : 383,350.92 = 103,679.08 : x
  2. Step 2: Convert to fraction form
    255,554.92/383,350.92 = 103,679.08/x
  3. Step 3: Cross multiply
    255,554.92x = 383,350.92 × 103,679.08
  4. Step 4: Simplify right side
    255,554.92x = 39,745,470,702.75
  5. Step 5: Solve for x
    x = 39,745,470,702.75/255,554.92
  6. Step 6: Final answer
    x = 155,526.14

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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.