Home / 250,449.36-345,619.40-137,271.76

Finding the Fourth Proportional to 250,449.36, 345,619.40 and 137,271.76

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Solution

The fourth proportional to 250,449.36, 345,619.40 and 137,271.76 is: 189,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,449.36 : 345,619.40 = 137,271.76 : x
  2. Step 2: Convert to fraction form
    250,449.36/345,619.40 = 137,271.76/x
  3. Step 3: Cross multiply
    250,449.36x = 345,619.40 × 137,271.76
  4. Step 4: Simplify right side
    250,449.36x = 47,443,783,328.14
  5. Step 5: Solve for x
    x = 47,443,783,328.14/250,449.36
  6. Step 6: Final answer
    x = 189,434.64

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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.