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Finding the Fourth Proportional to 308,981.70, 463,764.15 and 190,883.70

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Solution

The fourth proportional to 308,981.70, 463,764.15 and 190,883.70 is: 286,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,981.70 : 463,764.15 = 190,883.70 : x
  2. Step 2: Convert to fraction form
    308,981.70/463,764.15 = 190,883.70/x
  3. Step 3: Cross multiply
    308,981.70x = 463,764.15 × 190,883.70
  4. Step 4: Simplify right side
    308,981.70x = 88,525,016,879.36
  5. Step 5: Solve for x
    x = 88,525,016,879.36/308,981.70
  6. Step 6: Final answer
    x = 286,505.70

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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.