Finding the Fourth Proportional to 315,654.05, 473,639.45 and 147,187.55
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Solution
The fourth proportional to 315,654.05, 473,639.45 and 147,187.55 is: 220,855.18
Step by Step Solution
- Step 1: Write the proportion equation
315,654.05 : 473,639.45 = 147,187.55 : x - Step 2: Convert to fraction form
315,654.05/473,639.45 = 147,187.55/x - Step 3: Cross multiply
315,654.05x = 473,639.45 × 147,187.55 - Step 4: Simplify right side
315,654.05x = 69,713,831,504.94 - Step 5: Solve for x
x = 69,713,831,504.94/315,654.05 - Step 6: Final answer
x = 220,855.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.