Home / 278,605.31-384,471.97-151,281.81

Finding the Fourth Proportional to 278,605.31, 384,471.97 and 151,281.81

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Solution

The fourth proportional to 278,605.31, 384,471.97 and 151,281.81 is: 208,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,605.31 : 384,471.97 = 151,281.81 : x
  2. Step 2: Convert to fraction form
    278,605.31/384,471.97 = 151,281.81/x
  3. Step 3: Cross multiply
    278,605.31x = 384,471.97 × 151,281.81
  4. Step 4: Simplify right side
    278,605.31x = 58,163,615,137.66
  5. Step 5: Solve for x
    x = 58,163,615,137.66/278,605.31
  6. Step 6: Final answer
    x = 208,767.08

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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.