Finding the Fourth Proportional to 260,376.53, 390,425.87 and 123,455.75
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Solution
The fourth proportional to 260,376.53, 390,425.87 and 123,455.75 is: 185,117.75
Step by Step Solution
- Step 1: Write the proportion equation
260,376.53 : 390,425.87 = 123,455.75 : x - Step 2: Convert to fraction form
260,376.53/390,425.87 = 123,455.75/x - Step 3: Cross multiply
260,376.53x = 390,425.87 × 123,455.75 - Step 4: Simplify right side
260,376.53x = 48,200,316,956.76 - Step 5: Solve for x
x = 48,200,316,956.76/260,376.53 - Step 6: Final answer
x = 185,117.75
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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.