Home / 308,946.96-426,126.60-283,535.28

Finding the Fourth Proportional to 308,946.96, 426,126.60 and 283,535.28

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Solution

The fourth proportional to 308,946.96, 426,126.60 and 283,535.28 is: 391,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,946.96 : 426,126.60 = 283,535.28 : x
  2. Step 2: Convert to fraction form
    308,946.96/426,126.60 = 283,535.28/x
  3. Step 3: Cross multiply
    308,946.96x = 426,126.60 × 283,535.28
  4. Step 4: Simplify right side
    308,946.96x = 120,821,924,846.45
  5. Step 5: Solve for x
    x = 120,821,924,846.45/308,946.96
  6. Step 6: Final answer
    x = 391,076.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.