Home / 256,435.02-384,308.69-199,577.58

Finding the Fourth Proportional to 256,435.02, 384,308.69 and 199,577.58

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Solution

The fourth proportional to 256,435.02, 384,308.69 and 199,577.58 is: 299,098.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,435.02 : 384,308.69 = 199,577.58 : x
  2. Step 2: Convert to fraction form
    256,435.02/384,308.69 = 199,577.58/x
  3. Step 3: Cross multiply
    256,435.02x = 384,308.69 × 199,577.58
  4. Step 4: Simplify right side
    256,435.02x = 76,699,396,401.63
  5. Step 5: Solve for x
    x = 76,699,396,401.63/256,435.02
  6. Step 6: Final answer
    x = 299,098.76

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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.