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Finding the Fourth Proportional to 484,805, 727,286.28 and 143,283.08

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Solution

The fourth proportional to 484,805, 727,286.28 and 143,283.08 is: 214,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,805 : 727,286.28 = 143,283.08 : x
  2. Step 2: Convert to fraction form
    484,805/727,286.28 = 143,283.08/x
  3. Step 3: Cross multiply
    484,805x = 727,286.28 × 143,283.08
  4. Step 4: Simplify right side
    484,805x = 104,207,818,240.14
  5. Step 5: Solve for x
    x = 104,207,818,240.14/484,805
  6. Step 6: Final answer
    x = 214,947.90

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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.