Finding the Fourth Proportional to 260,119.84, 390,210.99 and 91,605.31
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Solution
The fourth proportional to 260,119.84, 390,210.99 and 91,605.31 is: 137,418.96
Step by Step Solution
- Step 1: Write the proportion equation
260,119.84 : 390,210.99 = 91,605.31 : x - Step 2: Convert to fraction form
260,119.84/390,210.99 = 91,605.31/x - Step 3: Cross multiply
260,119.84x = 390,210.99 × 91,605.31 - Step 4: Simplify right side
260,119.84x = 35,745,398,704.36 - Step 5: Solve for x
x = 35,745,398,704.36/260,119.84 - Step 6: Final answer
x = 137,418.96
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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.