Home / 282,119.40-389,325.24-154,795.95

Finding the Fourth Proportional to 282,119.40, 389,325.24 and 154,795.95

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Solution

The fourth proportional to 282,119.40, 389,325.24 and 154,795.95 is: 213,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,119.40 : 389,325.24 = 154,795.95 : x
  2. Step 2: Convert to fraction form
    282,119.40/389,325.24 = 154,795.95/x
  3. Step 3: Cross multiply
    282,119.40x = 389,325.24 × 154,795.95
  4. Step 4: Simplify right side
    282,119.40x = 60,265,970,384.78
  5. Step 5: Solve for x
    x = 60,265,970,384.78/282,119.40
  6. Step 6: Final answer
    x = 213,618.67

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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.