Finding the Fourth Proportional to 431,332.80, 646,977.12 and 165,220.80
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Solution
The fourth proportional to 431,332.80, 646,977.12 and 165,220.80 is: 247,822.74
Step by Step Solution
- Step 1: Write the proportion equation
431,332.80 : 646,977.12 = 165,220.80 : x - Step 2: Convert to fraction form
431,332.80/646,977.12 = 165,220.80/x - Step 3: Cross multiply
431,332.80x = 646,977.12 × 165,220.80 - Step 4: Simplify right side
431,332.80x = 106,894,077,348.10 - Step 5: Solve for x
x = 106,894,077,348.10/431,332.80 - Step 6: Final answer
x = 247,822.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.