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Finding the Fourth Proportional to 405,334.48, 559,284.60 and 254,363.44

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Solution

The fourth proportional to 405,334.48, 559,284.60 and 254,363.44 is: 350,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,334.48 : 559,284.60 = 254,363.44 : x
  2. Step 2: Convert to fraction form
    405,334.48/559,284.60 = 254,363.44/x
  3. Step 3: Cross multiply
    405,334.48x = 559,284.60 × 254,363.44
  4. Step 4: Simplify right side
    405,334.48x = 142,261,554,795.02
  5. Step 5: Solve for x
    x = 142,261,554,795.02/405,334.48
  6. Step 6: Final answer
    x = 350,973.24

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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.