Finding the Fourth Proportional to 238,157.80, 328,661.49 and 130,737.64
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Solution
The fourth proportional to 238,157.80, 328,661.49 and 130,737.64 is: 180,419.99
Step by Step Solution
- Step 1: Write the proportion equation
238,157.80 : 328,661.49 = 130,737.64 : x - Step 2: Convert to fraction form
238,157.80/328,661.49 = 130,737.64/x - Step 3: Cross multiply
238,157.80x = 328,661.49 × 130,737.64 - Step 4: Simplify right side
238,157.80x = 42,968,427,561.48 - Step 5: Solve for x
x = 42,968,427,561.48/238,157.80 - Step 6: Final answer
x = 180,419.99
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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.