Home / 254,488.09-381,741.27-128,059.49

Finding the Fourth Proportional to 254,488.09, 381,741.27 and 128,059.49

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Solution

The fourth proportional to 254,488.09, 381,741.27 and 128,059.49 is: 192,093.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,488.09 : 381,741.27 = 128,059.49 : x
  2. Step 2: Convert to fraction form
    254,488.09/381,741.27 = 128,059.49/x
  3. Step 3: Cross multiply
    254,488.09x = 381,741.27 × 128,059.49
  4. Step 4: Simplify right side
    254,488.09x = 48,885,593,302.51
  5. Step 5: Solve for x
    x = 48,885,593,302.51/254,488.09
  6. Step 6: Final answer
    x = 192,093.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.