Home / 208,936.40-288,338.13-122,901.64

Finding the Fourth Proportional to 208,936.40, 288,338.13 and 122,901.64

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Solution

The fourth proportional to 208,936.40, 288,338.13 and 122,901.64 is: 169,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,936.40 : 288,338.13 = 122,901.64 : x
  2. Step 2: Convert to fraction form
    208,936.40/288,338.13 = 122,901.64/x
  3. Step 3: Cross multiply
    208,936.40x = 288,338.13 × 122,901.64
  4. Step 4: Simplify right side
    208,936.40x = 35,437,228,330.69
  5. Step 5: Solve for x
    x = 35,437,228,330.69/208,936.40
  6. Step 6: Final answer
    x = 169,607.73

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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.