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Finding the Fourth Proportional to 381,860.98, 526,909.62 and 220,684.93

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Solution

The fourth proportional to 381,860.98, 526,909.62 and 220,684.93 is: 304,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,860.98 : 526,909.62 = 220,684.93 : x
  2. Step 2: Convert to fraction form
    381,860.98/526,909.62 = 220,684.93/x
  3. Step 3: Cross multiply
    381,860.98x = 526,909.62 × 220,684.93
  4. Step 4: Simplify right side
    381,860.98x = 116,281,012,606.03
  5. Step 5: Solve for x
    x = 116,281,012,606.03/381,860.98
  6. Step 6: Final answer
    x = 304,511.38

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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.