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Finding the Fourth Proportional to 427,763.79, 590,273.55 and 255,647.52

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Solution

The fourth proportional to 427,763.79, 590,273.55 and 255,647.52 is: 352,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,763.79 : 590,273.55 = 255,647.52 : x
  2. Step 2: Convert to fraction form
    427,763.79/590,273.55 = 255,647.52/x
  3. Step 3: Cross multiply
    427,763.79x = 590,273.55 × 255,647.52
  4. Step 4: Simplify right side
    427,763.79x = 150,901,969,179.10
  5. Step 5: Solve for x
    x = 150,901,969,179.10/427,763.79
  6. Step 6: Final answer
    x = 352,769.39

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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.