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Finding the Fourth Proportional to 268,636, 402,951.60 and 100,150.60

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Solution

The fourth proportional to 268,636, 402,951.60 and 100,150.60 is: 150,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,636 : 402,951.60 = 100,150.60 : x
  2. Step 2: Convert to fraction form
    268,636/402,951.60 = 100,150.60/x
  3. Step 3: Cross multiply
    268,636x = 402,951.60 × 100,150.60
  4. Step 4: Simplify right side
    268,636x = 40,355,844,510.96
  5. Step 5: Solve for x
    x = 40,355,844,510.96/268,636
  6. Step 6: Final answer
    x = 150,225.01

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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.