Finding the Fourth Proportional to 212,280.30, 292,988.66 and 121,697.08
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Solution
The fourth proportional to 212,280.30, 292,988.66 and 121,697.08 is: 167,965.96
Step by Step Solution
- Step 1: Write the proportion equation
212,280.30 : 292,988.66 = 121,697.08 : x - Step 2: Convert to fraction form
212,280.30/292,988.66 = 121,697.08/x - Step 3: Cross multiply
212,280.30x = 292,988.66 × 121,697.08 - Step 4: Simplify right side
212,280.30x = 35,655,864,395.11 - Step 5: Solve for x
x = 35,655,864,395.11/212,280.30 - Step 6: Final answer
x = 167,965.96
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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.