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Finding the Fourth Proportional to 308,846.40, 463,269.60 and 131,359.20

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Solution

The fourth proportional to 308,846.40, 463,269.60 and 131,359.20 is: 197,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,846.40 : 463,269.60 = 131,359.20 : x
  2. Step 2: Convert to fraction form
    308,846.40/463,269.60 = 131,359.20/x
  3. Step 3: Cross multiply
    308,846.40x = 463,269.60 × 131,359.20
  4. Step 4: Simplify right side
    308,846.40x = 60,854,724,040.32
  5. Step 5: Solve for x
    x = 60,854,724,040.32/308,846.40
  6. Step 6: Final answer
    x = 197,038.80

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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.