Home / 278,498.05-384,326.98-151,173.64

Finding the Fourth Proportional to 278,498.05, 384,326.98 and 151,173.64

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Solution

The fourth proportional to 278,498.05, 384,326.98 and 151,173.64 is: 208,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,498.05 : 384,326.98 = 151,173.64 : x
  2. Step 2: Convert to fraction form
    278,498.05/384,326.98 = 151,173.64/x
  3. Step 3: Cross multiply
    278,498.05x = 384,326.98 × 151,173.64
  4. Step 4: Simplify right side
    278,498.05x = 58,100,108,619.28
  5. Step 5: Solve for x
    x = 58,100,108,619.28/278,498.05
  6. Step 6: Final answer
    x = 208,619.45

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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.