Finding the Fourth Proportional to 316,288.53, 436,435.07 and 188,937.09
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Solution
The fourth proportional to 316,288.53, 436,435.07 and 188,937.09 is: 260,707.43
Step by Step Solution
- Step 1: Write the proportion equation
316,288.53 : 436,435.07 = 188,937.09 : x - Step 2: Convert to fraction form
316,288.53/436,435.07 = 188,937.09/x - Step 3: Cross multiply
316,288.53x = 436,435.07 × 188,937.09 - Step 4: Simplify right side
316,288.53x = 82,458,771,155.06 - Step 5: Solve for x
x = 82,458,771,155.06/316,288.53 - Step 6: Final answer
x = 260,707.43
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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.