Home / 409,431.98-565,010.39-228,151.55

Finding the Fourth Proportional to 409,431.98, 565,010.39 and 228,151.55

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Solution

The fourth proportional to 409,431.98, 565,010.39 and 228,151.55 is: 314,845.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,431.98 : 565,010.39 = 228,151.55 : x
  2. Step 2: Convert to fraction form
    409,431.98/565,010.39 = 228,151.55/x
  3. Step 3: Cross multiply
    409,431.98x = 565,010.39 × 228,151.55
  4. Step 4: Simplify right side
    409,431.98x = 128,907,998,227.51
  5. Step 5: Solve for x
    x = 128,907,998,227.51/409,431.98
  6. Step 6: Final answer
    x = 314,845.94

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1.5x scale

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.