Home / 278,343.54-384,113.61-151,019.10

Finding the Fourth Proportional to 278,343.54, 384,113.61 and 151,019.10

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Solution

The fourth proportional to 278,343.54, 384,113.61 and 151,019.10 is: 208,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,343.54 : 384,113.61 = 151,019.10 : x
  2. Step 2: Convert to fraction form
    278,343.54/384,113.61 = 151,019.10/x
  3. Step 3: Cross multiply
    278,343.54x = 384,113.61 × 151,019.10
  4. Step 4: Simplify right side
    278,343.54x = 58,008,491,679.95
  5. Step 5: Solve for x
    x = 58,008,491,679.95/278,343.54
  6. Step 6: Final answer
    x = 208,406.10

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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.