Home / 306,021.67-422,283.05-170,047.00

Finding the Fourth Proportional to 306,021.67, 422,283.05 and 170,047.00

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Solution

The fourth proportional to 306,021.67, 422,283.05 and 170,047.00 is: 234,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,021.67 : 422,283.05 = 170,047.00 : x
  2. Step 2: Convert to fraction form
    306,021.67/422,283.05 = 170,047.00/x
  3. Step 3: Cross multiply
    306,021.67x = 422,283.05 × 170,047.00
  4. Step 4: Simplify right side
    306,021.67x = 71,807,963,265.05
  5. Step 5: Solve for x
    x = 71,807,963,265.05/306,021.67
  6. Step 6: Final answer
    x = 234,649.93

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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.