Home / 287,315.21-396,494.97-166,526.55

Finding the Fourth Proportional to 287,315.21, 396,494.97 and 166,526.55

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Solution

The fourth proportional to 287,315.21, 396,494.97 and 166,526.55 is: 229,806.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,315.21 : 396,494.97 = 166,526.55 : x
  2. Step 2: Convert to fraction form
    287,315.21/396,494.97 = 166,526.55/x
  3. Step 3: Cross multiply
    287,315.21x = 396,494.97 × 166,526.55
  4. Step 4: Simplify right side
    287,315.21x = 66,026,939,446.45
  5. Step 5: Solve for x
    x = 66,026,939,446.45/287,315.21
  6. Step 6: Final answer
    x = 229,806.63

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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.