Finding the Fourth Proportional to 312,332.24, 431,030.76 and 176,394.80
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Solution
The fourth proportional to 312,332.24, 431,030.76 and 176,394.80 is: 243,431.75
Step by Step Solution
- Step 1: Write the proportion equation
312,332.24 : 431,030.76 = 176,394.80 : x - Step 2: Convert to fraction form
312,332.24/431,030.76 = 176,394.80/x - Step 3: Cross multiply
312,332.24x = 431,030.76 × 176,394.80 - Step 4: Simplify right side
312,332.24x = 76,031,584,704.05 - Step 5: Solve for x
x = 76,031,584,704.05/312,332.24 - Step 6: Final answer
x = 243,431.75
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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.