Home / 281,352.06-388,265.94-154,035.72

Finding the Fourth Proportional to 281,352.06, 388,265.94 and 154,035.72

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Solution

The fourth proportional to 281,352.06, 388,265.94 and 154,035.72 is: 212,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,352.06 : 388,265.94 = 154,035.72 : x
  2. Step 2: Convert to fraction form
    281,352.06/388,265.94 = 154,035.72/x
  3. Step 3: Cross multiply
    281,352.06x = 388,265.94 × 154,035.72
  4. Step 4: Simplify right side
    281,352.06x = 59,806,823,619.38
  5. Step 5: Solve for x
    x = 59,806,823,619.38/281,352.06
  6. Step 6: Final answer
    x = 212,569.35

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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.