Finding the Fourth Proportional to 260,289.10, 390,394.19 and 89,536.79
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Solution
The fourth proportional to 260,289.10, 390,394.19 and 89,536.79 is: 134,291.62
Step by Step Solution
- Step 1: Write the proportion equation
260,289.10 : 390,394.19 = 89,536.79 : x - Step 2: Convert to fraction form
260,289.10/390,394.19 = 89,536.79/x - Step 3: Cross multiply
260,289.10x = 390,394.19 × 89,536.79 - Step 4: Simplify right side
260,289.10x = 34,954,643,807.08 - Step 5: Solve for x
x = 34,954,643,807.08/260,289.10 - Step 6: Final answer
x = 134,291.62
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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.