Finding the Fourth Proportional to 343,303.70, 515,101.35 and 165,719.30
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Solution
The fourth proportional to 343,303.70, 515,101.35 and 165,719.30 is: 248,649.33
Step by Step Solution
- Step 1: Write the proportion equation
343,303.70 : 515,101.35 = 165,719.30 : x - Step 2: Convert to fraction form
343,303.70/515,101.35 = 165,719.30/x - Step 3: Cross multiply
343,303.70x = 515,101.35 × 165,719.30 - Step 4: Simplify right side
343,303.70x = 85,362,235,151.06 - Step 5: Solve for x
x = 85,362,235,151.06/343,303.70 - Step 6: Final answer
x = 248,649.33
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1.5x scale
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.