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Finding the Fourth Proportional to 347,149.60, 520,724.40 and 322,266.40

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Solution

The fourth proportional to 347,149.60, 520,724.40 and 322,266.40 is: 483,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,149.60 : 520,724.40 = 322,266.40 : x
  2. Step 2: Convert to fraction form
    347,149.60/520,724.40 = 322,266.40/x
  3. Step 3: Cross multiply
    347,149.60x = 520,724.40 × 322,266.40
  4. Step 4: Simplify right side
    347,149.60x = 167,811,977,780.16
  5. Step 5: Solve for x
    x = 167,811,977,780.16/347,149.60
  6. Step 6: Final answer
    x = 483,399.60

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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.