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Finding the Fourth Proportional to 368,424.40, 552,636.60 and 131,774.80

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Solution

The fourth proportional to 368,424.40, 552,636.60 and 131,774.80 is: 197,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,424.40 : 552,636.60 = 131,774.80 : x
  2. Step 2: Convert to fraction form
    368,424.40/552,636.60 = 131,774.80/x
  3. Step 3: Cross multiply
    368,424.40x = 552,636.60 × 131,774.80
  4. Step 4: Simplify right side
    368,424.40x = 72,823,577,437.68
  5. Step 5: Solve for x
    x = 72,823,577,437.68/368,424.40
  6. Step 6: Final answer
    x = 197,662.20

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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.