Finding the Fourth Proportional to 292,391.76, 403,432.20 and 171,526.80
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Solution
The fourth proportional to 292,391.76, 403,432.20 and 171,526.80 is: 236,666.84
Step by Step Solution
- Step 1: Write the proportion equation
292,391.76 : 403,432.20 = 171,526.80 : x - Step 2: Convert to fraction form
292,391.76/403,432.20 = 171,526.80/x - Step 3: Cross multiply
292,391.76x = 403,432.20 × 171,526.80 - Step 4: Simplify right side
292,391.76x = 69,199,434,282.96 - Step 5: Solve for x
x = 69,199,434,282.96/292,391.76 - Step 6: Final answer
x = 236,666.84
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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.