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Finding the Fourth Proportional to 368,453.40, 552,680.10 and 131,803.80

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Solution

The fourth proportional to 368,453.40, 552,680.10 and 131,803.80 is: 197,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,453.40 : 552,680.10 = 131,803.80 : x
  2. Step 2: Convert to fraction form
    368,453.40/552,680.10 = 131,803.80/x
  3. Step 3: Cross multiply
    368,453.40x = 552,680.10 × 131,803.80
  4. Step 4: Simplify right side
    368,453.40x = 72,845,337,364.38
  5. Step 5: Solve for x
    x = 72,845,337,364.38/368,453.40
  6. Step 6: Final answer
    x = 197,705.70

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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.