Finding the Fourth Proportional to 390,241.99, 585,463.73 and 120,364.06
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Solution
The fourth proportional to 390,241.99, 585,463.73 and 120,364.06 is: 180,577.16
Step by Step Solution
- Step 1: Write the proportion equation
390,241.99 : 585,463.73 = 120,364.06 : x - Step 2: Convert to fraction form
390,241.99/585,463.73 = 120,364.06/x - Step 3: Cross multiply
390,241.99x = 585,463.73 × 120,364.06 - Step 4: Simplify right side
390,241.99x = 70,468,790,557.81 - Step 5: Solve for x
x = 70,468,790,557.81/390,241.99 - Step 6: Final answer
x = 180,577.16
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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.