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Finding the Fourth Proportional to 397,331.20, 595,996.80 and 97,809.40

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Solution

The fourth proportional to 397,331.20, 595,996.80 and 97,809.40 is: 146,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,331.20 : 595,996.80 = 97,809.40 : x
  2. Step 2: Convert to fraction form
    397,331.20/595,996.80 = 97,809.40/x
  3. Step 3: Cross multiply
    397,331.20x = 595,996.80 × 97,809.40
  4. Step 4: Simplify right side
    397,331.20x = 58,294,089,409.92
  5. Step 5: Solve for x
    x = 58,294,089,409.92/397,331.20
  6. Step 6: Final answer
    x = 146,714.10

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Similar ratio
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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.