Finding the Fourth Proportional to 316,432.40, 436,675.12 and 171,238.07
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Solution
The fourth proportional to 316,432.40, 436,675.12 and 171,238.07 is: 236,307.68
Step by Step Solution
- Step 1: Write the proportion equation
316,432.40 : 436,675.12 = 171,238.07 : x - Step 2: Convert to fraction form
316,432.40/436,675.12 = 171,238.07/x - Step 3: Cross multiply
316,432.40x = 436,675.12 × 171,238.07 - Step 4: Simplify right side
316,432.40x = 74,775,405,429.41 - Step 5: Solve for x
x = 74,775,405,429.41/316,432.40 - Step 6: Final answer
x = 236,307.68
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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.