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Finding the Fourth Proportional to 262,889.82, 393,959.70 and 202,690.62

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Solution

The fourth proportional to 262,889.82, 393,959.70 and 202,690.62 is: 303,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,889.82 : 393,959.70 = 202,690.62 : x
  2. Step 2: Convert to fraction form
    262,889.82/393,959.70 = 202,690.62/x
  3. Step 3: Cross multiply
    262,889.82x = 393,959.70 × 202,690.62
  4. Step 4: Simplify right side
    262,889.82x = 79,851,937,339.64
  5. Step 5: Solve for x
    x = 79,851,937,339.64/262,889.82
  6. Step 6: Final answer
    x = 303,746.78

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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.