Home / 220,526.26-304,339.51-129,942.64

Finding the Fourth Proportional to 220,526.26, 304,339.51 and 129,942.64

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Solution

The fourth proportional to 220,526.26, 304,339.51 and 129,942.64 is: 179,328.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,526.26 : 304,339.51 = 129,942.64 : x
  2. Step 2: Convert to fraction form
    220,526.26/304,339.51 = 129,942.64/x
  3. Step 3: Cross multiply
    220,526.26x = 304,339.51 × 129,942.64
  4. Step 4: Simplify right side
    220,526.26x = 39,546,679,928.56
  5. Step 5: Solve for x
    x = 39,546,679,928.56/220,526.26
  6. Step 6: Final answer
    x = 179,328.67

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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.