Home / 235,427.40-352,334.70-142,000.20

Finding the Fourth Proportional to 235,427.40, 352,334.70 and 142,000.20

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Solution

The fourth proportional to 235,427.40, 352,334.70 and 142,000.20 is: 212,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,427.40 : 352,334.70 = 142,000.20 : x
  2. Step 2: Convert to fraction form
    235,427.40/352,334.70 = 142,000.20/x
  3. Step 3: Cross multiply
    235,427.40x = 352,334.70 × 142,000.20
  4. Step 4: Simplify right side
    235,427.40x = 50,031,597,866.94
  5. Step 5: Solve for x
    x = 50,031,597,866.94/235,427.40
  6. Step 6: Final answer
    x = 212,513.91

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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.