Finding the Fourth Proportional to 260,121.18, 390,181.70 and 73,132.68
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Solution
The fourth proportional to 260,121.18, 390,181.70 and 73,132.68 is: 109,699.00
Step by Step Solution
- Step 1: Write the proportion equation
260,121.18 : 390,181.70 = 73,132.68 : x - Step 2: Convert to fraction form
260,121.18/390,181.70 = 73,132.68/x - Step 3: Cross multiply
260,121.18x = 390,181.70 × 73,132.68 - Step 4: Simplify right side
260,121.18x = 28,535,033,407.96 - Step 5: Solve for x
x = 28,535,033,407.96/260,121.18 - Step 6: Final answer
x = 109,699.00
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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.