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Finding the Fourth Proportional to 248,869.80, 374,226.30 and 208,319.40

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Solution

The fourth proportional to 248,869.80, 374,226.30 and 208,319.40 is: 313,250.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,869.80 : 374,226.30 = 208,319.40 : x
  2. Step 2: Convert to fraction form
    248,869.80/374,226.30 = 208,319.40/x
  3. Step 3: Cross multiply
    248,869.80x = 374,226.30 × 208,319.40
  4. Step 4: Simplify right side
    248,869.80x = 77,958,598,280.22
  5. Step 5: Solve for x
    x = 77,958,598,280.22/248,869.80
  6. Step 6: Final answer
    x = 313,250.54

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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.