Finding the Fourth Proportional to 155,686.42, 214,394.73 and 135,259.03
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Solution
The fourth proportional to 155,686.42, 214,394.73 and 135,259.03 is: 186,264.31
Step by Step Solution
- Step 1: Write the proportion equation
155,686.42 : 214,394.73 = 135,259.03 : x - Step 2: Convert to fraction form
155,686.42/214,394.73 = 135,259.03/x - Step 3: Cross multiply
155,686.42x = 214,394.73 × 135,259.03 - Step 4: Simplify right side
155,686.42x = 28,998,822,144.94 - Step 5: Solve for x
x = 28,998,822,144.94/155,686.42 - Step 6: Final answer
x = 186,264.31
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1.5x scale
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.