Finding the Fourth Proportional to 201,681.20, 302,521.80 and 53,937.20
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Solution
The fourth proportional to 201,681.20, 302,521.80 and 53,937.20 is: 80,905.80
Step by Step Solution
- Step 1: Write the proportion equation
201,681.20 : 302,521.80 = 53,937.20 : x - Step 2: Convert to fraction form
201,681.20/302,521.80 = 53,937.20/x - Step 3: Cross multiply
201,681.20x = 302,521.80 × 53,937.20 - Step 4: Simplify right side
201,681.20x = 16,317,178,830.96 - Step 5: Solve for x
x = 16,317,178,830.96/201,681.20 - Step 6: Final answer
x = 80,905.80
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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.