Finding the Fourth Proportional to 343,085.66, 514,678.11 and 129,795.74
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Solution
The fourth proportional to 343,085.66, 514,678.11 and 129,795.74 is: 194,712.38
Step by Step Solution
- Step 1: Write the proportion equation
343,085.66 : 514,678.11 = 129,795.74 : x - Step 2: Convert to fraction form
343,085.66/514,678.11 = 129,795.74/x - Step 3: Cross multiply
343,085.66x = 514,678.11 × 129,795.74 - Step 4: Simplify right side
343,085.66x = 66,803,026,149.25 - Step 5: Solve for x
x = 66,803,026,149.25/343,085.66 - Step 6: Final answer
x = 194,712.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.