Home / 278,415.75-384,214.02-151,091.37

Finding the Fourth Proportional to 278,415.75, 384,214.02 and 151,091.37

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Solution

The fourth proportional to 278,415.75, 384,214.02 and 151,091.37 is: 208,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,415.75 : 384,214.02 = 151,091.37 : x
  2. Step 2: Convert to fraction form
    278,415.75/384,214.02 = 151,091.37/x
  3. Step 3: Cross multiply
    278,415.75x = 384,214.02 × 151,091.37
  4. Step 4: Simplify right side
    278,415.75x = 58,051,422,655.01
  5. Step 5: Solve for x
    x = 58,051,422,655.01/278,415.75
  6. Step 6: Final answer
    x = 208,506.25

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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.