Home / 278,776.41-418,163.24-79,097.16

Finding the Fourth Proportional to 278,776.41, 418,163.24 and 79,097.16

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Solution

The fourth proportional to 278,776.41, 418,163.24 and 79,097.16 is: 118,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,776.41 : 418,163.24 = 79,097.16 : x
  2. Step 2: Convert to fraction form
    278,776.41/418,163.24 = 79,097.16/x
  3. Step 3: Cross multiply
    278,776.41x = 418,163.24 × 79,097.16
  4. Step 4: Simplify right side
    278,776.41x = 33,075,526,466.25
  5. Step 5: Solve for x
    x = 33,075,526,466.25/278,776.41
  6. Step 6: Final answer
    x = 118,645.36

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1.5x scale

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.