Finding the Fourth Proportional to 217,154.79, 325,844.69 and 145,158.08
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Solution
The fourth proportional to 217,154.79, 325,844.69 and 145,158.08 is: 217,812.31
Step by Step Solution
- Step 1: Write the proportion equation
217,154.79 : 325,844.69 = 145,158.08 : x - Step 2: Convert to fraction form
217,154.79/325,844.69 = 145,158.08/x - Step 3: Cross multiply
217,154.79x = 325,844.69 × 145,158.08 - Step 4: Simplify right side
217,154.79x = 47,298,987,223.58 - Step 5: Solve for x
x = 47,298,987,223.58/217,154.79 - Step 6: Final answer
x = 217,812.31
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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.