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Finding the Fourth Proportional to 380,996.52, 571,438.62 and 100,533.48

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Solution

The fourth proportional to 380,996.52, 571,438.62 and 100,533.48 is: 150,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,996.52 : 571,438.62 = 100,533.48 : x
  2. Step 2: Convert to fraction form
    380,996.52/571,438.62 = 100,533.48/x
  3. Step 3: Cross multiply
    380,996.52x = 571,438.62 × 100,533.48
  4. Step 4: Simplify right side
    380,996.52x = 57,448,713,075.00
  5. Step 5: Solve for x
    x = 57,448,713,075.00/380,996.52
  6. Step 6: Final answer
    x = 150,785.40

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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.