Home / 278,340.41-384,109.79-151,016.01

Finding the Fourth Proportional to 278,340.41, 384,109.79 and 151,016.01

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Solution

The fourth proportional to 278,340.41, 384,109.79 and 151,016.01 is: 208,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,340.41 : 384,109.79 = 151,016.01 : x
  2. Step 2: Convert to fraction form
    278,340.41/384,109.79 = 151,016.01/x
  3. Step 3: Cross multiply
    278,340.41x = 384,109.79 × 151,016.01
  4. Step 4: Simplify right side
    278,340.41x = 58,006,727,132.66
  5. Step 5: Solve for x
    x = 58,006,727,132.66/278,340.41
  6. Step 6: Final answer
    x = 208,402.11

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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.