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Finding the Fourth Proportional to 320,817.60, 481,226.40 and 163,353.60

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Solution

The fourth proportional to 320,817.60, 481,226.40 and 163,353.60 is: 245,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,817.60 : 481,226.40 = 163,353.60 : x
  2. Step 2: Convert to fraction form
    320,817.60/481,226.40 = 163,353.60/x
  3. Step 3: Cross multiply
    320,817.60x = 481,226.40 × 163,353.60
  4. Step 4: Simplify right side
    320,817.60x = 78,610,064,855.04
  5. Step 5: Solve for x
    x = 78,610,064,855.04/320,817.60
  6. Step 6: Final answer
    x = 245,030.40

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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.