Home / 281,031.75-421,501.44-121,064.28

Finding the Fourth Proportional to 281,031.75, 421,501.44 and 121,064.28

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Solution

The fourth proportional to 281,031.75, 421,501.44 and 121,064.28 is: 181,576.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,031.75 : 421,501.44 = 121,064.28 : x
  2. Step 2: Convert to fraction form
    281,031.75/421,501.44 = 121,064.28/x
  3. Step 3: Cross multiply
    281,031.75x = 421,501.44 × 121,064.28
  4. Step 4: Simplify right side
    281,031.75x = 51,028,768,352.56
  5. Step 5: Solve for x
    x = 51,028,768,352.56/281,031.75
  6. Step 6: Final answer
    x = 181,576.52

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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.