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Finding the Fourth Proportional to 381,450.22, 526,425.16 and 220,334.74

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Solution

The fourth proportional to 381,450.22, 526,425.16 and 220,334.74 is: 304,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,450.22 : 526,425.16 = 220,334.74 : x
  2. Step 2: Convert to fraction form
    381,450.22/526,425.16 = 220,334.74/x
  3. Step 3: Cross multiply
    381,450.22x = 526,425.16 × 220,334.74
  4. Step 4: Simplify right side
    381,450.22x = 115,989,750,758.06
  5. Step 5: Solve for x
    x = 115,989,750,758.06/381,450.22
  6. Step 6: Final answer
    x = 304,075.72

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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.