Finding the Fourth Proportional to 238,355.21, 328,921.35 and 130,918.84
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Solution
The fourth proportional to 238,355.21, 328,921.35 and 130,918.84 is: 180,663.14
Step by Step Solution
- Step 1: Write the proportion equation
238,355.21 : 328,921.35 = 130,918.84 : x - Step 2: Convert to fraction form
238,355.21/328,921.35 = 130,918.84/x - Step 3: Cross multiply
238,355.21x = 328,921.35 × 130,918.84 - Step 4: Simplify right side
238,355.21x = 43,062,001,593.23 - Step 5: Solve for x
x = 43,062,001,593.23/238,355.21 - Step 6: Final answer
x = 180,663.14
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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.