Finding the Fourth Proportional to 166,222.19, 249,354.84 and 76,243.20
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Solution
The fourth proportional to 166,222.19, 249,354.84 and 76,243.20 is: 114,374.69
Step by Step Solution
- Step 1: Write the proportion equation
166,222.19 : 249,354.84 = 76,243.20 : x - Step 2: Convert to fraction form
166,222.19/249,354.84 = 76,243.20/x - Step 3: Cross multiply
166,222.19x = 249,354.84 × 76,243.20 - Step 4: Simplify right side
166,222.19x = 19,011,610,937.09 - Step 5: Solve for x
x = 19,011,610,937.09/166,222.19 - Step 6: Final answer
x = 114,374.69
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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.