Finding the Fourth Proportional to 420,192.97, 630,327.93 and 167,412.22
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Solution
The fourth proportional to 420,192.97, 630,327.93 and 167,412.22 is: 251,133.66
Step by Step Solution
- Step 1: Write the proportion equation
420,192.97 : 630,327.93 = 167,412.22 : x - Step 2: Convert to fraction form
420,192.97/630,327.93 = 167,412.22/x - Step 3: Cross multiply
420,192.97x = 630,327.93 × 167,412.22 - Step 4: Simplify right side
420,192.97x = 105,524,598,089.31 - Step 5: Solve for x
x = 105,524,598,089.31/420,192.97 - Step 6: Final answer
x = 251,133.66
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1.5x scale
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.