Finding the Fourth Proportional to 328,412.07, 453,209.18 and 177,509.07
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Solution
The fourth proportional to 328,412.07, 453,209.18 and 177,509.07 is: 244,962.80
Step by Step Solution
- Step 1: Write the proportion equation
328,412.07 : 453,209.18 = 177,509.07 : x - Step 2: Convert to fraction form
328,412.07/453,209.18 = 177,509.07/x - Step 3: Cross multiply
328,412.07x = 453,209.18 × 177,509.07 - Step 4: Simplify right side
328,412.07x = 80,448,739,169.72 - Step 5: Solve for x
x = 80,448,739,169.72/328,412.07 - Step 6: Final answer
x = 244,962.80
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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.