Finding the Fourth Proportional to 319,775.11, 441,278.06 and 176,532.08
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Solution
The fourth proportional to 319,775.11, 441,278.06 and 176,532.08 is: 243,607.86
Step by Step Solution
- Step 1: Write the proportion equation
319,775.11 : 441,278.06 = 176,532.08 : x - Step 2: Convert to fraction form
319,775.11/441,278.06 = 176,532.08/x - Step 3: Cross multiply
319,775.11x = 441,278.06 × 176,532.08 - Step 4: Simplify right side
319,775.11x = 77,899,730,701.11 - Step 5: Solve for x
x = 77,899,730,701.11/319,775.11 - Step 6: Final answer
x = 243,607.86
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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.