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Finding the Fourth Proportional to 368,447.67, 552,671.64 and 131,776.20

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Solution

The fourth proportional to 368,447.67, 552,671.64 and 131,776.20 is: 197,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,447.67 : 552,671.64 = 131,776.20 : x
  2. Step 2: Convert to fraction form
    368,447.67/552,671.64 = 131,776.20/x
  3. Step 3: Cross multiply
    368,447.67x = 552,671.64 × 131,776.20
  4. Step 4: Simplify right side
    368,447.67x = 72,828,968,566.97
  5. Step 5: Solve for x
    x = 72,828,968,566.97/368,447.67
  6. Step 6: Final answer
    x = 197,664.35

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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.