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Finding the Fourth Proportional to 213,687.60, 294,891.48 and 118,191.84

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Solution

The fourth proportional to 213,687.60, 294,891.48 and 118,191.84 is: 163,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,687.60 : 294,891.48 = 118,191.84 : x
  2. Step 2: Convert to fraction form
    213,687.60/294,891.48 = 118,191.84/x
  3. Step 3: Cross multiply
    213,687.60x = 294,891.48 × 118,191.84
  4. Step 4: Simplify right side
    213,687.60x = 34,853,766,621.52
  5. Step 5: Solve for x
    x = 34,853,766,621.52/213,687.60
  6. Step 6: Final answer
    x = 163,106.17

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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.