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Finding the Fourth Proportional to 317,794.28, 438,632.46 and 181,906.98

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Solution

The fourth proportional to 317,794.28, 438,632.46 and 181,906.98 is: 251,075.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,794.28 : 438,632.46 = 181,906.98 : x
  2. Step 2: Convert to fraction form
    317,794.28/438,632.46 = 181,906.98/x
  3. Step 3: Cross multiply
    317,794.28x = 438,632.46 × 181,906.98
  4. Step 4: Simplify right side
    317,794.28x = 79,790,306,128.57
  5. Step 5: Solve for x
    x = 79,790,306,128.57/317,794.28
  6. Step 6: Final answer
    x = 251,075.34

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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.