Home / 235,428.40-352,336.20-142,001.20

Finding the Fourth Proportional to 235,428.40, 352,336.20 and 142,001.20

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Solution

The fourth proportional to 235,428.40, 352,336.20 and 142,001.20 is: 212,515.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,428.40 : 352,336.20 = 142,001.20 : x
  2. Step 2: Convert to fraction form
    235,428.40/352,336.20 = 142,001.20/x
  3. Step 3: Cross multiply
    235,428.40x = 352,336.20 × 142,001.20
  4. Step 4: Simplify right side
    235,428.40x = 50,032,163,203.44
  5. Step 5: Solve for x
    x = 50,032,163,203.44/235,428.40
  6. Step 6: Final answer
    x = 212,515.41

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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.