Home / 282,544.41-389,911.43-155,228.21

Finding the Fourth Proportional to 282,544.41, 389,911.43 and 155,228.21

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Solution

The fourth proportional to 282,544.41, 389,911.43 and 155,228.21 is: 214,215.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,544.41 : 389,911.43 = 155,228.21 : x
  2. Step 2: Convert to fraction form
    282,544.41/389,911.43 = 155,228.21/x
  3. Step 3: Cross multiply
    282,544.41x = 389,911.43 × 155,228.21
  4. Step 4: Simplify right side
    282,544.41x = 60,525,251,775.95
  5. Step 5: Solve for x
    x = 60,525,251,775.95/282,544.41
  6. Step 6: Final answer
    x = 214,215.00

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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.