Finding the Fourth Proportional to 390,062.93, 585,096.62 and 120,187.53
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Solution
The fourth proportional to 390,062.93, 585,096.62 and 120,187.53 is: 180,281.98
Step by Step Solution
- Step 1: Write the proportion equation
390,062.93 : 585,096.62 = 120,187.53 : x - Step 2: Convert to fraction form
390,062.93/585,096.62 = 120,187.53/x - Step 3: Cross multiply
390,062.93x = 585,096.62 × 120,187.53 - Step 4: Simplify right side
390,062.93x = 70,321,316,968.21 - Step 5: Solve for x
x = 70,321,316,968.21/390,062.93 - Step 6: Final answer
x = 180,281.98
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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.