Finding the Fourth Proportional to 423,129.18, 583,918.56 and 232,153.05
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Solution
The fourth proportional to 423,129.18, 583,918.56 and 232,153.05 is: 320,371.37
Step by Step Solution
- Step 1: Write the proportion equation
423,129.18 : 583,918.56 = 232,153.05 : x - Step 2: Convert to fraction form
423,129.18/583,918.56 = 232,153.05/x - Step 3: Cross multiply
423,129.18x = 583,918.56 × 232,153.05 - Step 4: Simplify right side
423,129.18x = 135,558,474,655.61 - Step 5: Solve for x
x = 135,558,474,655.61/423,129.18 - Step 6: Final answer
x = 320,371.37
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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.