Finding the Fourth Proportional to 371,313.12, 512,412.68 and 201,547.40
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Solution
The fourth proportional to 371,313.12, 512,412.68 and 201,547.40 is: 278,135.72
Step by Step Solution
- Step 1: Write the proportion equation
371,313.12 : 512,412.68 = 201,547.40 : x - Step 2: Convert to fraction form
371,313.12/512,412.68 = 201,547.40/x - Step 3: Cross multiply
371,313.12x = 512,412.68 × 201,547.40 - Step 4: Simplify right side
371,313.12x = 103,275,443,381.03 - Step 5: Solve for x
x = 103,275,443,381.03/371,313.12 - Step 6: Final answer
x = 278,135.72
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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.