Home / 253,659.12-349,880.98-163,129.60

Finding the Fourth Proportional to 253,659.12, 349,880.98 and 163,129.60

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Solution

The fourth proportional to 253,659.12, 349,880.98 and 163,129.60 is: 225,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,659.12 : 349,880.98 = 163,129.60 : x
  2. Step 2: Convert to fraction form
    253,659.12/349,880.98 = 163,129.60/x
  3. Step 3: Cross multiply
    253,659.12x = 349,880.98 × 163,129.60
  4. Step 4: Simplify right side
    253,659.12x = 57,075,944,315.01
  5. Step 5: Solve for x
    x = 57,075,944,315.01/253,659.12
  6. Step 6: Final answer
    x = 225,010.42

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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.