Finding the Fourth Proportional to 472,986.13, 652,734.69 and 258,139.97
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Solution
The fourth proportional to 472,986.13, 652,734.69 and 258,139.97 is: 356,240.71
Step by Step Solution
- Step 1: Write the proportion equation
472,986.13 : 652,734.69 = 258,139.97 : x - Step 2: Convert to fraction form
472,986.13/652,734.69 = 258,139.97/x - Step 3: Cross multiply
472,986.13x = 652,734.69 × 258,139.97 - Step 4: Simplify right side
472,986.13x = 168,496,913,294.56 - Step 5: Solve for x
x = 168,496,913,294.56/472,986.13 - Step 6: Final answer
x = 356,240.71
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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.