Finding the Fourth Proportional to 260,301.42, 390,549.34 and 102,639.78
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Solution
The fourth proportional to 260,301.42, 390,549.34 and 102,639.78 is: 153,998.00
Step by Step Solution
- Step 1: Write the proportion equation
260,301.42 : 390,549.34 = 102,639.78 : x - Step 2: Convert to fraction form
260,301.42/390,549.34 = 102,639.78/x - Step 3: Cross multiply
260,301.42x = 390,549.34 × 102,639.78 - Step 4: Simplify right side
260,301.42x = 40,085,898,336.75 - Step 5: Solve for x
x = 40,085,898,336.75/260,301.42 - Step 6: Final answer
x = 153,998.00
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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.