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Finding the Fourth Proportional to 235,763.40, 352,838.70 and 142,336.20

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Solution

The fourth proportional to 235,763.40, 352,838.70 and 142,336.20 is: 213,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,763.40 : 352,838.70 = 142,336.20 : x
  2. Step 2: Convert to fraction form
    235,763.40/352,838.70 = 142,336.20/x
  3. Step 3: Cross multiply
    235,763.40x = 352,838.70 × 142,336.20
  4. Step 4: Simplify right side
    235,763.40x = 50,221,719,770.94
  5. Step 5: Solve for x
    x = 50,221,719,770.94/235,763.40
  6. Step 6: Final answer
    x = 213,017.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.