Home / 308,288.48-462,455.40-130,775.36

Finding the Fourth Proportional to 308,288.48, 462,455.40 and 130,775.36

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Solution

The fourth proportional to 308,288.48, 462,455.40 and 130,775.36 is: 196,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,288.48 : 462,455.40 = 130,775.36 : x
  2. Step 2: Convert to fraction form
    308,288.48/462,455.40 = 130,775.36/x
  3. Step 3: Cross multiply
    308,288.48x = 462,455.40 × 130,775.36
  4. Step 4: Simplify right side
    308,288.48x = 60,477,771,418.94
  5. Step 5: Solve for x
    x = 60,477,771,418.94/308,288.48
  6. Step 6: Final answer
    x = 196,172.66

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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.