Home / 311,437.56-429,548.60-268,491.36

Finding the Fourth Proportional to 311,437.56, 429,548.60 and 268,491.36

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Solution

The fourth proportional to 311,437.56, 429,548.60 and 268,491.36 is: 370,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,437.56 : 429,548.60 = 268,491.36 : x
  2. Step 2: Convert to fraction form
    311,437.56/429,548.60 = 268,491.36/x
  3. Step 3: Cross multiply
    311,437.56x = 429,548.60 × 268,491.36
  4. Step 4: Simplify right side
    311,437.56x = 115,330,087,800.10
  5. Step 5: Solve for x
    x = 115,330,087,800.10/311,437.56
  6. Step 6: Final answer
    x = 370,315.28

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1.5x scale

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.