Finding the Fourth Proportional to 319,681.24, 441,128.70 and 176,432.03
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Solution
The fourth proportional to 319,681.24, 441,128.70 and 176,432.03 is: 243,458.87
Step by Step Solution
- Step 1: Write the proportion equation
319,681.24 : 441,128.70 = 176,432.03 : x - Step 2: Convert to fraction form
319,681.24/441,128.70 = 176,432.03/x - Step 3: Cross multiply
319,681.24x = 441,128.70 × 176,432.03 - Step 4: Simplify right side
319,681.24x = 77,829,231,480.85 - Step 5: Solve for x
x = 77,829,231,480.85/319,681.24 - Step 6: Final answer
x = 243,458.87
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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.