Finding the Fourth Proportional to 312,214.48, 430,855.95 and 168,974.53
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Solution
The fourth proportional to 312,214.48, 430,855.95 and 168,974.53 is: 233,184.83
Step by Step Solution
- Step 1: Write the proportion equation
312,214.48 : 430,855.95 = 168,974.53 : x - Step 2: Convert to fraction form
312,214.48/430,855.95 = 168,974.53/x - Step 3: Cross multiply
312,214.48x = 430,855.95 × 168,974.53 - Step 4: Simplify right side
312,214.48x = 72,803,681,648.95 - Step 5: Solve for x
x = 72,803,681,648.95/312,214.48 - Step 6: Final answer
x = 233,184.83
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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.