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Finding the Fourth Proportional to 381,809.41, 526,866.26 and 220,674.89

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Solution

The fourth proportional to 381,809.41, 526,866.26 and 220,674.89 is: 304,513.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,809.41 : 526,866.26 = 220,674.89 : x
  2. Step 2: Convert to fraction form
    381,809.41/526,866.26 = 220,674.89/x
  3. Step 3: Cross multiply
    381,809.41x = 526,866.26 × 220,674.89
  4. Step 4: Simplify right side
    381,809.41x = 116,266,154,184.00
  5. Step 5: Solve for x
    x = 116,266,154,184.00/381,809.41
  6. Step 6: Final answer
    x = 304,513.59

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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.