Finding the Fourth Proportional to 319,905.28, 441,447.06 and 176,664.07
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Solution
The fourth proportional to 319,905.28, 441,447.06 and 176,664.07 is: 243,784.14
Step by Step Solution
- Step 1: Write the proportion equation
319,905.28 : 441,447.06 = 176,664.07 : x - Step 2: Convert to fraction form
319,905.28/441,447.06 = 176,664.07/x - Step 3: Cross multiply
319,905.28x = 441,447.06 × 176,664.07 - Step 4: Simplify right side
319,905.28x = 77,987,834,309.13 - Step 5: Solve for x
x = 77,987,834,309.13/319,905.28 - Step 6: Final answer
x = 243,784.14
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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.