Finding the Fourth Proportional to 319,715.86, 441,207.93 and 176,475.94
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Solution
The fourth proportional to 319,715.86, 441,207.93 and 176,475.94 is: 243,536.82
Step by Step Solution
- Step 1: Write the proportion equation
319,715.86 : 441,207.93 = 176,475.94 : x - Step 2: Convert to fraction form
319,715.86/441,207.93 = 176,475.94/x - Step 3: Cross multiply
319,715.86x = 441,207.93 × 176,475.94 - Step 4: Simplify right side
319,715.86x = 77,862,584,182.20 - Step 5: Solve for x
x = 77,862,584,182.20/319,715.86 - Step 6: Final answer
x = 243,536.82
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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.