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Finding the Fourth Proportional to 301,247,144.80, 451,658,140.80 and 137,563,316.80

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Solution

The fourth proportional to 301,247,144.80, 451,658,140.80 and 137,563,316.80 is: 206,247,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,247,144.80 : 451,658,140.80 = 137,563,316.80 : x
  2. Step 2: Convert to fraction form
    301,247,144.80/451,658,140.80 = 137,563,316.80/x
  3. Step 3: Cross multiply
    301,247,144.80x = 451,658,140.80 × 137,563,316.80
  4. Step 4: Simplify right side
    301,247,144.80x = 62,131,591,908,169,416
  5. Step 5: Solve for x
    x = 62,131,591,908,169,416/301,247,144.80
  6. Step 6: Final answer
    x = 206,247,903.03

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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.