Home / 287,318.63-395,839.50-226,867.22

Finding the Fourth Proportional to 287,318.63, 395,839.50 and 226,867.22

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Solution

The fourth proportional to 287,318.63, 395,839.50 and 226,867.22 is: 312,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,318.63 : 395,839.50 = 226,867.22 : x
  2. Step 2: Convert to fraction form
    287,318.63/395,839.50 = 226,867.22/x
  3. Step 3: Cross multiply
    287,318.63x = 395,839.50 × 226,867.22
  4. Step 4: Simplify right side
    287,318.63x = 89,803,004,951.99
  5. Step 5: Solve for x
    x = 89,803,004,951.99/287,318.63
  6. Step 6: Final answer
    x = 312,555.46

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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.