Home / 278,610.10-384,494.84-157,735.42

Finding the Fourth Proportional to 278,610.10, 384,494.84 and 157,735.42

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Solution

The fourth proportional to 278,610.10, 384,494.84 and 157,735.42 is: 217,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,610.10 : 384,494.84 = 157,735.42 : x
  2. Step 2: Convert to fraction form
    278,610.10/384,494.84 = 157,735.42/x
  3. Step 3: Cross multiply
    278,610.10x = 384,494.84 × 157,735.42
  4. Step 4: Simplify right side
    278,610.10x = 60,648,455,075.23
  5. Step 5: Solve for x
    x = 60,648,455,075.23/278,610.10
  6. Step 6: Final answer
    x = 217,682.18

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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.