Finding the Fourth Proportional to 309,851.93, 427,486.01 and 202,484.21
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Solution
The fourth proportional to 309,851.93, 427,486.01 and 202,484.21 is: 279,356.54
Step by Step Solution
- Step 1: Write the proportion equation
309,851.93 : 427,486.01 = 202,484.21 : x - Step 2: Convert to fraction form
309,851.93/427,486.01 = 202,484.21/x - Step 3: Cross multiply
309,851.93x = 427,486.01 × 202,484.21 - Step 4: Simplify right side
309,851.93x = 86,559,163,871.05 - Step 5: Solve for x
x = 86,559,163,871.05/309,851.93 - Step 6: Final answer
x = 279,356.54
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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.