Home / 308,944.40-463,416.60-131,457.20

Finding the Fourth Proportional to 308,944.40, 463,416.60 and 131,457.20

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Solution

The fourth proportional to 308,944.40, 463,416.60 and 131,457.20 is: 197,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,944.40 : 463,416.60 = 131,457.20 : x
  2. Step 2: Convert to fraction form
    308,944.40/463,416.60 = 131,457.20/x
  3. Step 3: Cross multiply
    308,944.40x = 463,416.60 × 131,457.20
  4. Step 4: Simplify right side
    308,944.40x = 60,919,448,669.52
  5. Step 5: Solve for x
    x = 60,919,448,669.52/308,944.40
  6. Step 6: Final answer
    x = 197,185.80

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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.