Finding the Fourth Proportional to 201,823.84, 278,513.40 and 116,948.80
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Solution
The fourth proportional to 201,823.84, 278,513.40 and 116,948.80 is: 161,387.32
Step by Step Solution
- Step 1: Write the proportion equation
201,823.84 : 278,513.40 = 116,948.80 : x - Step 2: Convert to fraction form
201,823.84/278,513.40 = 116,948.80/x - Step 3: Cross multiply
201,823.84x = 278,513.40 × 116,948.80 - Step 4: Simplify right side
201,823.84x = 32,571,807,913.92 - Step 5: Solve for x
x = 32,571,807,913.92/201,823.84 - Step 6: Final answer
x = 161,387.32
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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.