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Finding the Fourth Proportional to 229,728.80, 344,074.80 and 136,416.80

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Solution

The fourth proportional to 229,728.80, 344,074.80 and 136,416.80 is: 204,317.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,728.80 : 344,074.80 = 136,416.80 : x
  2. Step 2: Convert to fraction form
    229,728.80/344,074.80 = 136,416.80/x
  3. Step 3: Cross multiply
    229,728.80x = 344,074.80 × 136,416.80
  4. Step 4: Simplify right side
    229,728.80x = 46,937,583,176.64
  5. Step 5: Solve for x
    x = 46,937,583,176.64/229,728.80
  6. Step 6: Final answer
    x = 204,317.37

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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.