Finding the Fourth Proportional to 387,444.96, 534,637.37 and 215,342.50
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Solution
The fourth proportional to 387,444.96, 534,637.37 and 215,342.50 is: 297,152.26
Step by Step Solution
- Step 1: Write the proportion equation
387,444.96 : 534,637.37 = 215,342.50 : x - Step 2: Convert to fraction form
387,444.96/534,637.37 = 215,342.50/x - Step 3: Cross multiply
387,444.96x = 534,637.37 × 215,342.50 - Step 4: Simplify right side
387,444.96x = 115,130,144,099.33 - Step 5: Solve for x
x = 115,130,144,099.33/387,444.96 - Step 6: Final answer
x = 297,152.26
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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.