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Finding the Fourth Proportional to 400,042.36, 599,878.86 and 147,259.48

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Solution

The fourth proportional to 400,042.36, 599,878.86 and 147,259.48 is: 220,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,042.36 : 599,878.86 = 147,259.48 : x
  2. Step 2: Convert to fraction form
    400,042.36/599,878.86 = 147,259.48/x
  3. Step 3: Cross multiply
    400,042.36x = 599,878.86 × 147,259.48
  4. Step 4: Simplify right side
    400,042.36x = 88,337,848,986.59
  5. Step 5: Solve for x
    x = 88,337,848,986.59/400,042.36
  6. Step 6: Final answer
    x = 220,821.24

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1.5x scale

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.