Finding the Fourth Proportional to 400,520.96, 552,681.12 and 239,343.92
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Solution
The fourth proportional to 400,520.96, 552,681.12 and 239,343.92 is: 330,272.02
Step by Step Solution
- Step 1: Write the proportion equation
400,520.96 : 552,681.12 = 239,343.92 : x - Step 2: Convert to fraction form
400,520.96/552,681.12 = 239,343.92/x - Step 3: Cross multiply
400,520.96x = 552,681.12 × 239,343.92 - Step 4: Simplify right side
400,520.96x = 132,280,865,770.79 - Step 5: Solve for x
x = 132,280,865,770.79/400,520.96 - Step 6: Final answer
x = 330,272.02
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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.