Home / 282,261.12-389,496-154,936.32

Finding the Fourth Proportional to 282,261.12, 389,496 and 154,936.32

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Solution

The fourth proportional to 282,261.12, 389,496 and 154,936.32 is: 213,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,261.12 : 389,496 = 154,936.32 : x
  2. Step 2: Convert to fraction form
    282,261.12/389,496 = 154,936.32/x
  3. Step 3: Cross multiply
    282,261.12x = 389,496 × 154,936.32
  4. Step 4: Simplify right side
    282,261.12x = 60,347,076,894.72
  5. Step 5: Solve for x
    x = 60,347,076,894.72/282,261.12
  6. Step 6: Final answer
    x = 213,798.76

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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.