Finding the Fourth Proportional to 399,207.40, 598,811.10 and 162,719.80
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Solution
The fourth proportional to 399,207.40, 598,811.10 and 162,719.80 is: 244,079.70
Step by Step Solution
- Step 1: Write the proportion equation
399,207.40 : 598,811.10 = 162,719.80 : x - Step 2: Convert to fraction form
399,207.40/598,811.10 = 162,719.80/x - Step 3: Cross multiply
399,207.40x = 598,811.10 × 162,719.80 - Step 4: Simplify right side
399,207.40x = 97,438,422,429.78 - Step 5: Solve for x
x = 97,438,422,429.78/399,207.40 - Step 6: Final answer
x = 244,079.70
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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.