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Finding the Fourth Proportional to 301,288.77, 416,328.66 and 219,474.63

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Solution

The fourth proportional to 301,288.77, 416,328.66 and 219,474.63 is: 303,275.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,288.77 : 416,328.66 = 219,474.63 : x
  2. Step 2: Convert to fraction form
    301,288.77/416,328.66 = 219,474.63/x
  3. Step 3: Cross multiply
    301,288.77x = 416,328.66 × 219,474.63
  4. Step 4: Simplify right side
    301,288.77x = 91,373,578,611.90
  5. Step 5: Solve for x
    x = 91,373,578,611.90/301,288.77
  6. Step 6: Final answer
    x = 303,275.75

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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.