Finding the Fourth Proportional to 153,247.19, 230,009.84 and 78,419.03
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Solution
The fourth proportional to 153,247.19, 230,009.84 and 78,419.03 is: 117,699.70
Step by Step Solution
- Step 1: Write the proportion equation
153,247.19 : 230,009.84 = 78,419.03 : x - Step 2: Convert to fraction form
153,247.19/230,009.84 = 78,419.03/x - Step 3: Cross multiply
153,247.19x = 230,009.84 × 78,419.03 - Step 4: Simplify right side
153,247.19x = 18,037,148,151.16 - Step 5: Solve for x
x = 18,037,148,151.16/153,247.19 - Step 6: Final answer
x = 117,699.70
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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.