Home / 278,828.74-384,785.99-151,504.35

Finding the Fourth Proportional to 278,828.74, 384,785.99 and 151,504.35

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Solution

The fourth proportional to 278,828.74, 384,785.99 and 151,504.35 is: 209,077.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,828.74 : 384,785.99 = 151,504.35 : x
  2. Step 2: Convert to fraction form
    278,828.74/384,785.99 = 151,504.35/x
  3. Step 3: Cross multiply
    278,828.74x = 384,785.99 × 151,504.35
  4. Step 4: Simplify right side
    278,828.74x = 58,296,751,304.06
  5. Step 5: Solve for x
    x = 58,296,751,304.06/278,828.74
  6. Step 6: Final answer
    x = 209,077.27

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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.