Home / 256,947.02-385,431.06-69,958.52

Finding the Fourth Proportional to 256,947.02, 385,431.06 and 69,958.52

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Solution

The fourth proportional to 256,947.02, 385,431.06 and 69,958.52 is: 104,940.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,947.02 : 385,431.06 = 69,958.52 : x
  2. Step 2: Convert to fraction form
    256,947.02/385,431.06 = 69,958.52/x
  3. Step 3: Cross multiply
    256,947.02x = 385,431.06 × 69,958.52
  4. Step 4: Simplify right side
    256,947.02x = 26,964,186,519.63
  5. Step 5: Solve for x
    x = 26,964,186,519.63/256,947.02
  6. Step 6: Final answer
    x = 104,940.65

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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.