Home / 285,161.12-393,571.16-164,280.76

Finding the Fourth Proportional to 285,161.12, 393,571.16 and 164,280.76

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Solution

The fourth proportional to 285,161.12, 393,571.16 and 164,280.76 is: 226,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,161.12 : 393,571.16 = 164,280.76 : x
  2. Step 2: Convert to fraction form
    285,161.12/393,571.16 = 164,280.76/x
  3. Step 3: Cross multiply
    285,161.12x = 393,571.16 × 164,280.76
  4. Step 4: Simplify right side
    285,161.12x = 64,656,169,278.88
  5. Step 5: Solve for x
    x = 64,656,169,278.88/285,161.12
  6. Step 6: Final answer
    x = 226,735.57

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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.