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Finding the Fourth Proportional to 417,995.25, 576,840.11 and 227,008.63

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Solution

The fourth proportional to 417,995.25, 576,840.11 and 227,008.63 is: 313,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,995.25 : 576,840.11 = 227,008.63 : x
  2. Step 2: Convert to fraction form
    417,995.25/576,840.11 = 227,008.63/x
  3. Step 3: Cross multiply
    417,995.25x = 576,840.11 × 227,008.63
  4. Step 4: Simplify right side
    417,995.25x = 130,947,683,100.15
  5. Step 5: Solve for x
    x = 130,947,683,100.15/417,995.25
  6. Step 6: Final answer
    x = 313,275.53

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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.