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Finding the Fourth Proportional to 427,747.50, 590,291.55 and 248,899.50

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Solution

The fourth proportional to 427,747.50, 590,291.55 and 248,899.50 is: 343,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,747.50 : 590,291.55 = 248,899.50 : x
  2. Step 2: Convert to fraction form
    427,747.50/590,291.55 = 248,899.50/x
  3. Step 3: Cross multiply
    427,747.50x = 590,291.55 × 248,899.50
  4. Step 4: Simplify right side
    427,747.50x = 146,923,271,649.23
  5. Step 5: Solve for x
    x = 146,923,271,649.23/427,747.50
  6. Step 6: Final answer
    x = 343,481.31

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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.