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Finding the Fourth Proportional to 253,313.15, 380,074.35 and 111,084.80

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Solution

The fourth proportional to 253,313.15, 380,074.35 and 111,084.80 is: 166,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,313.15 : 380,074.35 = 111,084.80 : x
  2. Step 2: Convert to fraction form
    253,313.15/380,074.35 = 111,084.80/x
  3. Step 3: Cross multiply
    253,313.15x = 380,074.35 × 111,084.80
  4. Step 4: Simplify right side
    253,313.15x = 42,220,483,154.88
  5. Step 5: Solve for x
    x = 42,220,483,154.88/253,313.15
  6. Step 6: Final answer
    x = 166,673.08

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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.