Finding the Fourth Proportional to 316,277.19, 436,419.45 and 188,925.75
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Solution
The fourth proportional to 316,277.19, 436,419.45 and 188,925.75 is: 260,691.81
Step by Step Solution
- Step 1: Write the proportion equation
316,277.19 : 436,419.45 = 188,925.75 : x - Step 2: Convert to fraction form
316,277.19/436,419.45 = 188,925.75/x - Step 3: Cross multiply
316,277.19x = 436,419.45 × 188,925.75 - Step 4: Simplify right side
316,277.19x = 82,450,871,905.84 - Step 5: Solve for x
x = 82,450,871,905.84/316,277.19 - Step 6: Final answer
x = 260,691.81
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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.