Finding the Fourth Proportional to 238,202.12, 328,734.88 and 157,490.88
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Solution
The fourth proportional to 238,202.12, 328,734.88 and 157,490.88 is: 217,347.96
Step by Step Solution
- Step 1: Write the proportion equation
238,202.12 : 328,734.88 = 157,490.88 : x - Step 2: Convert to fraction form
238,202.12/328,734.88 = 157,490.88/x - Step 3: Cross multiply
238,202.12x = 328,734.88 × 157,490.88 - Step 4: Simplify right side
238,202.12x = 51,772,745,537.89 - Step 5: Solve for x
x = 51,772,745,537.89/238,202.12 - Step 6: Final answer
x = 217,347.96
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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.