Home / 278,642.85-384,505.83-163,926.06

Finding the Fourth Proportional to 278,642.85, 384,505.83 and 163,926.06

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Solution

The fourth proportional to 278,642.85, 384,505.83 and 163,926.06 is: 226,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,642.85 : 384,505.83 = 163,926.06 : x
  2. Step 2: Convert to fraction form
    278,642.85/384,505.83 = 163,926.06/x
  3. Step 3: Cross multiply
    278,642.85x = 384,505.83 × 163,926.06
  4. Step 4: Simplify right side
    278,642.85x = 63,030,525,758.93
  5. Step 5: Solve for x
    x = 63,030,525,758.93/278,642.85
  6. Step 6: Final answer
    x = 226,205.43

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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.