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Finding the Fourth Proportional to 209,308.42, 288,839.58 and 118,672.84

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Solution

The fourth proportional to 209,308.42, 288,839.58 and 118,672.84 is: 163,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,308.42 : 288,839.58 = 118,672.84 : x
  2. Step 2: Convert to fraction form
    209,308.42/288,839.58 = 118,672.84/x
  3. Step 3: Cross multiply
    209,308.42x = 288,839.58 × 118,672.84
  4. Step 4: Simplify right side
    209,308.42x = 34,277,413,263.01
  5. Step 5: Solve for x
    x = 34,277,413,263.01/209,308.42
  6. Step 6: Final answer
    x = 163,765.09

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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.