Home / 545,251.25-817,951.40-190,212.05

Finding the Fourth Proportional to 545,251.25, 817,951.40 and 190,212.05

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Solution

The fourth proportional to 545,251.25, 817,951.40 and 190,212.05 is: 285,344.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,251.25 : 817,951.40 = 190,212.05 : x
  2. Step 2: Convert to fraction form
    545,251.25/817,951.40 = 190,212.05/x
  3. Step 3: Cross multiply
    545,251.25x = 817,951.40 × 190,212.05
  4. Step 4: Simplify right side
    545,251.25x = 155,584,211,643.31
  5. Step 5: Solve for x
    x = 155,584,211,643.31/545,251.25
  6. Step 6: Final answer
    x = 285,344.07

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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.