Finding the Fourth Proportional to 472,990.86, 652,729.23 and 258,135.75
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Solution
The fourth proportional to 472,990.86, 652,729.23 and 258,135.75 is: 356,228.34
Step by Step Solution
- Step 1: Write the proportion equation
472,990.86 : 652,729.23 = 258,135.75 : x - Step 2: Convert to fraction form
472,990.86/652,729.23 = 258,135.75/x - Step 3: Cross multiply
472,990.86x = 652,729.23 × 258,135.75 - Step 4: Simplify right side
472,990.86x = 168,492,749,332.97 - Step 5: Solve for x
x = 168,492,749,332.97/472,990.86 - Step 6: Final answer
x = 356,228.34
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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.