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Finding the Fourth Proportional to 306,880.23, 423,478.23 and 169,054.64

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Solution

The fourth proportional to 306,880.23, 423,478.23 and 169,054.64 is: 233,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,880.23 : 423,478.23 = 169,054.64 : x
  2. Step 2: Convert to fraction form
    306,880.23/423,478.23 = 169,054.64/x
  3. Step 3: Cross multiply
    306,880.23x = 423,478.23 × 169,054.64
  4. Step 4: Simplify right side
    306,880.23x = 71,590,958,079.35
  5. Step 5: Solve for x
    x = 71,590,958,079.35/306,880.23
  6. Step 6: Final answer
    x = 233,286.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.