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Finding the Fourth Proportional to 255,399.40, 383,099.10 and 118,608.73

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Solution

The fourth proportional to 255,399.40, 383,099.10 and 118,608.73 is: 177,913.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,399.40 : 383,099.10 = 118,608.73 : x
  2. Step 2: Convert to fraction form
    255,399.40/383,099.10 = 118,608.73/x
  3. Step 3: Cross multiply
    255,399.40x = 383,099.10 × 118,608.73
  4. Step 4: Simplify right side
    255,399.40x = 45,438,897,715.14
  5. Step 5: Solve for x
    x = 45,438,897,715.14/255,399.40
  6. Step 6: Final answer
    x = 177,913.10

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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.