Home / 309,615.57-427,273.02-171,797.00

Finding the Fourth Proportional to 309,615.57, 427,273.02 and 171,797.00

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Solution

The fourth proportional to 309,615.57, 427,273.02 and 171,797.00 is: 237,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,615.57 : 427,273.02 = 171,797.00 : x
  2. Step 2: Convert to fraction form
    309,615.57/427,273.02 = 171,797.00/x
  3. Step 3: Cross multiply
    309,615.57x = 427,273.02 × 171,797.00
  4. Step 4: Simplify right side
    309,615.57x = 73,404,220,880.57
  5. Step 5: Solve for x
    x = 73,404,220,880.57/309,615.57
  6. Step 6: Final answer
    x = 237,081.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.