Home / 278,316.07-384,076.31-150,991.63

Finding the Fourth Proportional to 278,316.07, 384,076.31 and 150,991.63

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Solution

The fourth proportional to 278,316.07, 384,076.31 and 150,991.63 is: 208,368.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,316.07 : 384,076.31 = 150,991.63 : x
  2. Step 2: Convert to fraction form
    278,316.07/384,076.31 = 150,991.63/x
  3. Step 3: Cross multiply
    278,316.07x = 384,076.31 × 150,991.63
  4. Step 4: Simplify right side
    278,316.07x = 57,992,308,091.29
  5. Step 5: Solve for x
    x = 57,992,308,091.29/278,316.07
  6. Step 6: Final answer
    x = 208,368.52

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1.5x scale

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.