Home / 251,384.36-346,911.72-138,214.40

Finding the Fourth Proportional to 251,384.36, 346,911.72 and 138,214.40

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Solution

The fourth proportional to 251,384.36, 346,911.72 and 138,214.40 is: 190,736.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,384.36 : 346,911.72 = 138,214.40 : x
  2. Step 2: Convert to fraction form
    251,384.36/346,911.72 = 138,214.40/x
  3. Step 3: Cross multiply
    251,384.36x = 346,911.72 × 138,214.40
  4. Step 4: Simplify right side
    251,384.36x = 47,948,195,232.77
  5. Step 5: Solve for x
    x = 47,948,195,232.77/251,384.36
  6. Step 6: Final answer
    x = 190,736.59

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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.