Home / 278,968.32-384,973.56-151,636.32

Finding the Fourth Proportional to 278,968.32, 384,973.56 and 151,636.32

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Solution

The fourth proportional to 278,968.32, 384,973.56 and 151,636.32 is: 209,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,968.32 : 384,973.56 = 151,636.32 : x
  2. Step 2: Convert to fraction form
    278,968.32/384,973.56 = 151,636.32/x
  3. Step 3: Cross multiply
    278,968.32x = 384,973.56 × 151,636.32
  4. Step 4: Simplify right side
    278,968.32x = 58,375,973,935.70
  5. Step 5: Solve for x
    x = 58,375,973,935.70/278,968.32
  6. Step 6: Final answer
    x = 209,256.64

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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.