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Finding the Fourth Proportional to 508,257.84, 701,479.80 and 281,976.24

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Solution

The fourth proportional to 508,257.84, 701,479.80 and 281,976.24 is: 389,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,257.84 : 701,479.80 = 281,976.24 : x
  2. Step 2: Convert to fraction form
    508,257.84/701,479.80 = 281,976.24/x
  3. Step 3: Cross multiply
    508,257.84x = 701,479.80 × 281,976.24
  4. Step 4: Simplify right side
    508,257.84x = 197,800,636,439.95
  5. Step 5: Solve for x
    x = 197,800,636,439.95/508,257.84
  6. Step 6: Final answer
    x = 389,173.80

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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.