Finding the Fourth Proportional to 250,712.69, 345,981.50 and 135,991.05
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Solution
The fourth proportional to 250,712.69, 345,981.50 and 135,991.05 is: 187,666.55
Step by Step Solution
- Step 1: Write the proportion equation
250,712.69 : 345,981.50 = 135,991.05 : x - Step 2: Convert to fraction form
250,712.69/345,981.50 = 135,991.05/x - Step 3: Cross multiply
250,712.69x = 345,981.50 × 135,991.05 - Step 4: Simplify right side
250,712.69x = 47,050,385,488.19 - Step 5: Solve for x
x = 47,050,385,488.19/250,712.69 - Step 6: Final answer
x = 187,666.55
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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.