Finding the Fourth Proportional to 155,202.08, 214,184.51 and 87,220.40
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Solution
The fourth proportional to 155,202.08, 214,184.51 and 87,220.40 is: 120,367.32
Step by Step Solution
- Step 1: Write the proportion equation
155,202.08 : 214,184.51 = 87,220.40 : x - Step 2: Convert to fraction form
155,202.08/214,184.51 = 87,220.40/x - Step 3: Cross multiply
155,202.08x = 214,184.51 × 87,220.40 - Step 4: Simplify right side
155,202.08x = 18,681,259,389.52 - Step 5: Solve for x
x = 18,681,259,389.52/155,202.08 - Step 6: Final answer
x = 120,367.32
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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.