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Finding the Fourth Proportional to 251,352.36, 346,867.40 and 138,182.40

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Solution

The fourth proportional to 251,352.36, 346,867.40 and 138,182.40 is: 190,692.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,352.36 : 346,867.40 = 138,182.40 : x
  2. Step 2: Convert to fraction form
    251,352.36/346,867.40 = 138,182.40/x
  3. Step 3: Cross multiply
    251,352.36x = 346,867.40 × 138,182.40
  4. Step 4: Simplify right side
    251,352.36x = 47,930,969,813.76
  5. Step 5: Solve for x
    x = 47,930,969,813.76/251,352.36
  6. Step 6: Final answer
    x = 190,692.34

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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.