Finding the Fourth Proportional to 315,465.84, 435,343.68 and 172,227.06
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Solution
The fourth proportional to 315,465.84, 435,343.68 and 172,227.06 is: 237,673.79
Step by Step Solution
- Step 1: Write the proportion equation
315,465.84 : 435,343.68 = 172,227.06 : x - Step 2: Convert to fraction form
315,465.84/435,343.68 = 172,227.06/x - Step 3: Cross multiply
315,465.84x = 435,343.68 × 172,227.06 - Step 4: Simplify right side
315,465.84x = 74,977,962,095.98 - Step 5: Solve for x
x = 74,977,962,095.98/315,465.84 - Step 6: Final answer
x = 237,673.79
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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.