Finding the Fourth Proportional to 395,407.45, 592,988.51 and 142,655.09
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Solution
The fourth proportional to 395,407.45, 592,988.51 and 142,655.09 is: 213,938.37
Step by Step Solution
- Step 1: Write the proportion equation
395,407.45 : 592,988.51 = 142,655.09 : x - Step 2: Convert to fraction form
395,407.45/592,988.51 = 142,655.09/x - Step 3: Cross multiply
395,407.45x = 592,988.51 × 142,655.09 - Step 4: Simplify right side
395,407.45x = 84,592,826,387.23 - Step 5: Solve for x
x = 84,592,826,387.23/395,407.45 - Step 6: Final answer
x = 213,938.37
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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.