Finding the Fourth Proportional to 316,739.79, 437,101.02 and 173,502.18
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Solution
The fourth proportional to 316,739.79, 437,101.02 and 173,502.18 is: 239,433.07
Step by Step Solution
- Step 1: Write the proportion equation
316,739.79 : 437,101.02 = 173,502.18 : x - Step 2: Convert to fraction form
316,739.79/437,101.02 = 173,502.18/x - Step 3: Cross multiply
316,739.79x = 437,101.02 × 173,502.18 - Step 4: Simplify right side
316,739.79x = 75,837,979,850.22 - Step 5: Solve for x
x = 75,837,979,850.22/316,739.79 - Step 6: Final answer
x = 239,433.07
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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.