Home / 208,914.49-288,319.83-118,286.42

Finding the Fourth Proportional to 208,914.49, 288,319.83 and 118,286.42

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Solution

The fourth proportional to 208,914.49, 288,319.83 and 118,286.42 is: 163,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,914.49 : 288,319.83 = 118,286.42 : x
  2. Step 2: Convert to fraction form
    208,914.49/288,319.83 = 118,286.42/x
  3. Step 3: Cross multiply
    208,914.49x = 288,319.83 × 118,286.42
  4. Step 4: Simplify right side
    208,914.49x = 34,104,320,505.71
  5. Step 5: Solve for x
    x = 34,104,320,505.71/208,914.49
  6. Step 6: Final answer
    x = 163,245.36

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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.