Home / 278,237.28-416,422.80-228,315.36

Finding the Fourth Proportional to 278,237.28, 416,422.80 and 228,315.36

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Solution

The fourth proportional to 278,237.28, 416,422.80 and 228,315.36 is: 341,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,237.28 : 416,422.80 = 228,315.36 : x
  2. Step 2: Convert to fraction form
    278,237.28/416,422.80 = 228,315.36/x
  3. Step 3: Cross multiply
    278,237.28x = 416,422.80 × 228,315.36
  4. Step 4: Simplify right side
    278,237.28x = 95,075,721,494.21
  5. Step 5: Solve for x
    x = 95,075,721,494.21/278,237.28
  6. Step 6: Final answer
    x = 341,707.34

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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.