Home / 214,561.28-295,888.82-128,506.48

Finding the Fourth Proportional to 214,561.28, 295,888.82 and 128,506.48

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Solution

The fourth proportional to 214,561.28, 295,888.82 and 128,506.48 is: 177,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,561.28 : 295,888.82 = 128,506.48 : x
  2. Step 2: Convert to fraction form
    214,561.28/295,888.82 = 128,506.48/x
  3. Step 3: Cross multiply
    214,561.28x = 295,888.82 × 128,506.48
  4. Step 4: Simplify right side
    214,561.28x = 38,023,630,729.55
  5. Step 5: Solve for x
    x = 38,023,630,729.55/214,561.28
  6. Step 6: Final answer
    x = 177,215.72

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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.