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Finding the Fourth Proportional to 322,643.12, 483,605.88 and 243,500.72

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Solution

The fourth proportional to 322,643.12, 483,605.88 and 243,500.72 is: 364,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,643.12 : 483,605.88 = 243,500.72 : x
  2. Step 2: Convert to fraction form
    322,643.12/483,605.88 = 243,500.72/x
  3. Step 3: Cross multiply
    322,643.12x = 483,605.88 × 243,500.72
  4. Step 4: Simplify right side
    322,643.12x = 117,758,379,976.23
  5. Step 5: Solve for x
    x = 117,758,379,976.23/322,643.12
  6. Step 6: Final answer
    x = 364,980.29

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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.