Finding the Fourth Proportional to 318,982.68, 440,148.06 and 181,140.12
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Solution
The fourth proportional to 318,982.68, 440,148.06 and 181,140.12 is: 249,946.09
Step by Step Solution
- Step 1: Write the proportion equation
318,982.68 : 440,148.06 = 181,140.12 : x - Step 2: Convert to fraction form
318,982.68/440,148.06 = 181,140.12/x - Step 3: Cross multiply
318,982.68x = 440,148.06 × 181,140.12 - Step 4: Simplify right side
318,982.68x = 79,728,472,406.17 - Step 5: Solve for x
x = 79,728,472,406.17/318,982.68 - Step 6: Final answer
x = 249,946.09
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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.