Home / 251,081.36-346,509.24-137,905.28

Finding the Fourth Proportional to 251,081.36, 346,509.24 and 137,905.28

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Solution

The fourth proportional to 251,081.36, 346,509.24 and 137,905.28 is: 190,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,081.36 : 346,509.24 = 137,905.28 : x
  2. Step 2: Convert to fraction form
    251,081.36/346,509.24 = 137,905.28/x
  3. Step 3: Cross multiply
    251,081.36x = 346,509.24 × 137,905.28
  4. Step 4: Simplify right side
    251,081.36x = 47,785,453,764.79
  5. Step 5: Solve for x
    x = 47,785,453,764.79/251,081.36
  6. Step 6: Final answer
    x = 190,318.60

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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.