Home / 278,556.18-417,674-148,564.62

Finding the Fourth Proportional to 278,556.18, 417,674 and 148,564.62

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Solution

The fourth proportional to 278,556.18, 417,674 and 148,564.62 is: 222,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,556.18 : 417,674 = 148,564.62 : x
  2. Step 2: Convert to fraction form
    278,556.18/417,674 = 148,564.62/x
  3. Step 3: Cross multiply
    278,556.18x = 417,674 × 148,564.62
  4. Step 4: Simplify right side
    278,556.18x = 62,051,579,093.88
  5. Step 5: Solve for x
    x = 62,051,579,093.88/278,556.18
  6. Step 6: Final answer
    x = 222,761.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.