Home / 253,661.12-349,883.75-163,131.60

Finding the Fourth Proportional to 253,661.12, 349,883.75 and 163,131.60

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Solution

The fourth proportional to 253,661.12, 349,883.75 and 163,131.60 is: 225,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,661.12 : 349,883.75 = 163,131.60 : x
  2. Step 2: Convert to fraction form
    253,661.12/349,883.75 = 163,131.60/x
  3. Step 3: Cross multiply
    253,661.12x = 349,883.75 × 163,131.60
  4. Step 4: Simplify right side
    253,661.12x = 57,077,095,135.84
  5. Step 5: Solve for x
    x = 57,077,095,135.84/253,661.12
  6. Step 6: Final answer
    x = 225,013.18

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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.