Home / 279,256.16-385,369.26-151,928.84

Finding the Fourth Proportional to 279,256.16, 385,369.26 and 151,928.84

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Solution

The fourth proportional to 279,256.16, 385,369.26 and 151,928.84 is: 209,659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,256.16 : 385,369.26 = 151,928.84 : x
  2. Step 2: Convert to fraction form
    279,256.16/385,369.26 = 151,928.84/x
  3. Step 3: Cross multiply
    279,256.16x = 385,369.26 × 151,928.84
  4. Step 4: Simplify right side
    279,256.16x = 58,548,704,643.46
  5. Step 5: Solve for x
    x = 58,548,704,643.46/279,256.16
  6. Step 6: Final answer
    x = 209,659.49

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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.