Home / 286,647.49-395,571.25-155,824.32

Finding the Fourth Proportional to 286,647.49, 395,571.25 and 155,824.32

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Solution

The fourth proportional to 286,647.49, 395,571.25 and 155,824.32 is: 215,036.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,647.49 : 395,571.25 = 155,824.32 : x
  2. Step 2: Convert to fraction form
    286,647.49/395,571.25 = 155,824.32/x
  3. Step 3: Cross multiply
    286,647.49x = 395,571.25 × 155,824.32
  4. Step 4: Simplify right side
    286,647.49x = 61,639,621,844.46
  5. Step 5: Solve for x
    x = 61,639,621,844.46/286,647.49
  6. Step 6: Final answer
    x = 215,036.32

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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.