Home / 256,530.42-354,010.14-143,353.17

Finding the Fourth Proportional to 256,530.42, 354,010.14 and 143,353.17

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Solution

The fourth proportional to 256,530.42, 354,010.14 and 143,353.17 is: 197,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,530.42 : 354,010.14 = 143,353.17 : x
  2. Step 2: Convert to fraction form
    256,530.42/354,010.14 = 143,353.17/x
  3. Step 3: Cross multiply
    256,530.42x = 354,010.14 × 143,353.17
  4. Step 4: Simplify right side
    256,530.42x = 50,748,475,781.14
  5. Step 5: Solve for x
    x = 50,748,475,781.14/256,530.42
  6. Step 6: Final answer
    x = 197,826.35

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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.