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Finding the Fourth Proportional to 281,479.68, 421,222.14 and 248,264.64

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Solution

The fourth proportional to 281,479.68, 421,222.14 and 248,264.64 is: 371,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,479.68 : 421,222.14 = 248,264.64 : x
  2. Step 2: Convert to fraction form
    281,479.68/421,222.14 = 248,264.64/x
  3. Step 3: Cross multiply
    281,479.68x = 421,222.14 × 248,264.64
  4. Step 4: Simplify right side
    281,479.68x = 104,574,562,947.13
  5. Step 5: Solve for x
    x = 104,574,562,947.13/281,479.68
  6. Step 6: Final answer
    x = 371,517.27

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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.