Home / 278,540.51-384,384.83-151,216.07

Finding the Fourth Proportional to 278,540.51, 384,384.83 and 151,216.07

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Solution

The fourth proportional to 278,540.51, 384,384.83 and 151,216.07 is: 208,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,540.51 : 384,384.83 = 151,216.07 : x
  2. Step 2: Convert to fraction form
    278,540.51/384,384.83 = 151,216.07/x
  3. Step 3: Cross multiply
    278,540.51x = 384,384.83 × 151,216.07
  4. Step 4: Simplify right side
    278,540.51x = 58,125,160,682.21
  5. Step 5: Solve for x
    x = 58,125,160,682.21/278,540.51
  6. Step 6: Final answer
    x = 208,677.59

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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.