Finding the Fourth Proportional to 315,312.24, 435,145.08 and 177,538.62
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Solution
The fourth proportional to 315,312.24, 435,145.08 and 177,538.62 is: 245,011.28
Step by Step Solution
- Step 1: Write the proportion equation
315,312.24 : 435,145.08 = 177,538.62 : x - Step 2: Convert to fraction form
315,312.24/435,145.08 = 177,538.62/x - Step 3: Cross multiply
315,312.24x = 435,145.08 × 177,538.62 - Step 4: Simplify right side
315,312.24x = 77,255,057,002.99 - Step 5: Solve for x
x = 77,255,057,002.99/315,312.24 - Step 6: Final answer
x = 245,011.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.