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Finding the Fourth Proportional to 313,635.70, 469,675.95 and 251,427.70

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Solution

The fourth proportional to 313,635.70, 469,675.95 and 251,427.70 is: 376,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,635.70 : 469,675.95 = 251,427.70 : x
  2. Step 2: Convert to fraction form
    313,635.70/469,675.95 = 251,427.70/x
  3. Step 3: Cross multiply
    313,635.70x = 469,675.95 × 251,427.70
  4. Step 4: Simplify right side
    313,635.70x = 118,089,543,853.82
  5. Step 5: Solve for x
    x = 118,089,543,853.82/313,635.70
  6. Step 6: Final answer
    x = 376,518.18

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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.