Home / 278,346.51-384,116.45-151,019.37

Finding the Fourth Proportional to 278,346.51, 384,116.45 and 151,019.37

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Solution

The fourth proportional to 278,346.51, 384,116.45 and 151,019.37 is: 208,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,346.51 : 384,116.45 = 151,019.37 : x
  2. Step 2: Convert to fraction form
    278,346.51/384,116.45 = 151,019.37/x
  3. Step 3: Cross multiply
    278,346.51x = 384,116.45 × 151,019.37
  4. Step 4: Simplify right side
    278,346.51x = 58,009,023,530.54
  5. Step 5: Solve for x
    x = 58,009,023,530.54/278,346.51
  6. Step 6: Final answer
    x = 208,405.79

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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.