Finding the Fourth Proportional to 260,088.30, 390,054.69 and 135,361.26
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Solution
The fourth proportional to 260,088.30, 390,054.69 and 135,361.26 is: 203,001.42
Step by Step Solution
- Step 1: Write the proportion equation
260,088.30 : 390,054.69 = 135,361.26 : x - Step 2: Convert to fraction form
260,088.30/390,054.69 = 135,361.26/x - Step 3: Cross multiply
260,088.30x = 390,054.69 × 135,361.26 - Step 4: Simplify right side
260,088.30x = 52,798,294,307.31 - Step 5: Solve for x
x = 52,798,294,307.31/260,088.30 - Step 6: Final answer
x = 203,001.42
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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.