Finding the Fourth Proportional to 316,718.90, 437,072.16 and 173,484.08
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Solution
The fourth proportional to 316,718.90, 437,072.16 and 173,484.08 is: 239,408.07
Step by Step Solution
- Step 1: Write the proportion equation
316,718.90 : 437,072.16 = 173,484.08 : x - Step 2: Convert to fraction form
316,718.90/437,072.16 = 173,484.08/x - Step 3: Cross multiply
316,718.90x = 437,072.16 × 173,484.08 - Step 4: Simplify right side
316,718.90x = 75,825,061,571.21 - Step 5: Solve for x
x = 75,825,061,571.21/316,718.90 - Step 6: Final answer
x = 239,408.07
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1.5x scale
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.