Finding the Fourth Proportional to 319,869.76, 441,423.84 and 176,629.60
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Solution
The fourth proportional to 319,869.76, 441,423.84 and 176,629.60 is: 243,750.82
Step by Step Solution
- Step 1: Write the proportion equation
319,869.76 : 441,423.84 = 176,629.60 : x - Step 2: Convert to fraction form
319,869.76/441,423.84 = 176,629.60/x - Step 3: Cross multiply
319,869.76x = 441,423.84 × 176,629.60 - Step 4: Simplify right side
319,869.76x = 77,968,516,289.66 - Step 5: Solve for x
x = 77,968,516,289.66/319,869.76 - Step 6: Final answer
x = 243,750.82
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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.