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Finding the Fourth Proportional to 306,630.80, 459,071.40 and 188,532.80

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Solution

The fourth proportional to 306,630.80, 459,071.40 and 188,532.80 is: 282,261.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,630.80 : 459,071.40 = 188,532.80 : x
  2. Step 2: Convert to fraction form
    306,630.80/459,071.40 = 188,532.80/x
  3. Step 3: Cross multiply
    306,630.80x = 459,071.40 × 188,532.80
  4. Step 4: Simplify right side
    306,630.80x = 86,550,016,441.92
  5. Step 5: Solve for x
    x = 86,550,016,441.92/306,630.80
  6. Step 6: Final answer
    x = 282,261.33

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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.