Finding the Fourth Proportional to 331,970.66, 458,119.49 and 188,730.70
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Solution
The fourth proportional to 331,970.66, 458,119.49 and 188,730.70 is: 260,448.35
Step by Step Solution
- Step 1: Write the proportion equation
331,970.66 : 458,119.49 = 188,730.70 : x - Step 2: Convert to fraction form
331,970.66/458,119.49 = 188,730.70/x - Step 3: Cross multiply
331,970.66x = 458,119.49 × 188,730.70 - Step 4: Simplify right side
331,970.66x = 86,461,208,797.09 - Step 5: Solve for x
x = 86,461,208,797.09/331,970.66 - Step 6: Final answer
x = 260,448.35
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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.