Finding the Fourth Proportional to 280,347.96, 386,988.66 and 167,179.08
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Solution
The fourth proportional to 280,347.96, 386,988.66 and 167,179.08 is: 230,771.82
Step by Step Solution
- Step 1: Write the proportion equation
280,347.96 : 386,988.66 = 167,179.08 : x - Step 2: Convert to fraction form
280,347.96/386,988.66 = 167,179.08/x - Step 3: Cross multiply
280,347.96x = 386,988.66 × 167,179.08 - Step 4: Simplify right side
280,347.96x = 64,696,408,149.23 - Step 5: Solve for x
x = 64,696,408,149.23/280,347.96 - Step 6: Final answer
x = 230,771.82
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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.