Home / 281,230.56-421,758.93-81,565.63

Finding the Fourth Proportional to 281,230.56, 421,758.93 and 81,565.63

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Solution

The fourth proportional to 281,230.56, 421,758.93 and 81,565.63 is: 122,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,230.56 : 421,758.93 = 81,565.63 : x
  2. Step 2: Convert to fraction form
    281,230.56/421,758.93 = 81,565.63/x
  3. Step 3: Cross multiply
    281,230.56x = 421,758.93 × 81,565.63
  4. Step 4: Simplify right side
    281,230.56x = 34,401,032,833.58
  5. Step 5: Solve for x
    x = 34,401,032,833.58/281,230.56
  6. Step 6: Final answer
    x = 122,323.24

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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.