Home / 306,628.47-459,986.65-81,996.44

Finding the Fourth Proportional to 306,628.47, 459,986.65 and 81,996.44

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Solution

The fourth proportional to 306,628.47, 459,986.65 and 81,996.44 is: 123,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,628.47 : 459,986.65 = 81,996.44 : x
  2. Step 2: Convert to fraction form
    306,628.47/459,986.65 = 81,996.44/x
  3. Step 3: Cross multiply
    306,628.47x = 459,986.65 × 81,996.44
  4. Step 4: Simplify right side
    306,628.47x = 37,717,265,242.60
  5. Step 5: Solve for x
    x = 37,717,265,242.60/306,628.47
  6. Step 6: Final answer
    x = 123,006.40

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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.