Home / 279,420.03-419,130.18-92,431.53

Finding the Fourth Proportional to 279,420.03, 419,130.18 and 92,431.53

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Solution

The fourth proportional to 279,420.03, 419,130.18 and 92,431.53 is: 138,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,420.03 : 419,130.18 = 92,431.53 : x
  2. Step 2: Convert to fraction form
    279,420.03/419,130.18 = 92,431.53/x
  3. Step 3: Cross multiply
    279,420.03x = 419,130.18 × 92,431.53
  4. Step 4: Simplify right side
    279,420.03x = 38,740,843,806.58
  5. Step 5: Solve for x
    x = 38,740,843,806.58/279,420.03
  6. Step 6: Final answer
    x = 138,647.34

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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.