Finding the Fourth Proportional to 245,563.20, 368,128.80 and 166,420.80
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Solution
The fourth proportional to 245,563.20, 368,128.80 and 166,420.80 is: 249,484.81
Step by Step Solution
- Step 1: Write the proportion equation
245,563.20 : 368,128.80 = 166,420.80 : x - Step 2: Convert to fraction form
245,563.20/368,128.80 = 166,420.80/x - Step 3: Cross multiply
245,563.20x = 368,128.80 × 166,420.80 - Step 4: Simplify right side
245,563.20x = 61,264,289,399.04 - Step 5: Solve for x
x = 61,264,289,399.04/245,563.20 - Step 6: Final answer
x = 249,484.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.