Finding the Fourth Proportional to 316,665.05, 437,001.48 and 173,431.13
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Solution
The fourth proportional to 316,665.05, 437,001.48 and 173,431.13 is: 239,336.99
Step by Step Solution
- Step 1: Write the proportion equation
316,665.05 : 437,001.48 = 173,431.13 : x - Step 2: Convert to fraction form
316,665.05/437,001.48 = 173,431.13/x - Step 3: Cross multiply
316,665.05x = 437,001.48 × 173,431.13 - Step 4: Simplify right side
316,665.05x = 75,789,658,303.07 - Step 5: Solve for x
x = 75,789,658,303.07/316,665.05 - Step 6: Final answer
x = 239,336.99
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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.