Home / 278,239.28-416,425.80-228,317.36

Finding the Fourth Proportional to 278,239.28, 416,425.80 and 228,317.36

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Solution

The fourth proportional to 278,239.28, 416,425.80 and 228,317.36 is: 341,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,239.28 : 416,425.80 = 228,317.36 : x
  2. Step 2: Convert to fraction form
    278,239.28/416,425.80 = 228,317.36/x
  3. Step 3: Cross multiply
    278,239.28x = 416,425.80 × 228,317.36
  4. Step 4: Simplify right side
    278,239.28x = 95,077,239,291.89
  5. Step 5: Solve for x
    x = 95,077,239,291.89/278,239.28
  6. Step 6: Final answer
    x = 341,710.34

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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.