Finding the Fourth Proportional to 228,897.84, 315,873.36 and 126,923.70
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Solution
The fourth proportional to 228,897.84, 315,873.36 and 126,923.70 is: 175,151.57
Step by Step Solution
- Step 1: Write the proportion equation
228,897.84 : 315,873.36 = 126,923.70 : x - Step 2: Convert to fraction form
228,897.84/315,873.36 = 126,923.70/x - Step 3: Cross multiply
228,897.84x = 315,873.36 × 126,923.70 - Step 4: Simplify right side
228,897.84x = 40,091,815,582.63 - Step 5: Solve for x
x = 40,091,815,582.63/228,897.84 - Step 6: Final answer
x = 175,151.57
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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.