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Finding the Fourth Proportional to 208,970.42, 288,452.76 and 124,086.88

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Solution

The fourth proportional to 208,970.42, 288,452.76 and 124,086.88 is: 171,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,970.42 : 288,452.76 = 124,086.88 : x
  2. Step 2: Convert to fraction form
    208,970.42/288,452.76 = 124,086.88/x
  3. Step 3: Cross multiply
    208,970.42x = 288,452.76 × 124,086.88
  4. Step 4: Simplify right side
    208,970.42x = 35,793,203,015.79
  5. Step 5: Solve for x
    x = 35,793,203,015.79/208,970.42
  6. Step 6: Final answer
    x = 171,283.59

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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.