Home / 208,905.37-288,290.59-122,867.98

Finding the Fourth Proportional to 208,905.37, 288,290.59 and 122,867.98

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Solution

The fourth proportional to 208,905.37, 288,290.59 and 122,867.98 is: 169,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,905.37 : 288,290.59 = 122,867.98 : x
  2. Step 2: Convert to fraction form
    208,905.37/288,290.59 = 122,867.98/x
  3. Step 3: Cross multiply
    208,905.37x = 288,290.59 × 122,867.98
  4. Step 4: Simplify right side
    208,905.37x = 35,421,682,446.31
  5. Step 5: Solve for x
    x = 35,421,682,446.31/208,905.37
  6. Step 6: Final answer
    x = 169,558.51

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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.