Finding the Fourth Proportional to 266,779.97, 368,168.15 and 153,639.17
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Solution
The fourth proportional to 266,779.97, 368,168.15 and 153,639.17 is: 212,028.85
Step by Step Solution
- Step 1: Write the proportion equation
266,779.97 : 368,168.15 = 153,639.17 : x - Step 2: Convert to fraction form
266,779.97/368,168.15 = 153,639.17/x - Step 3: Cross multiply
266,779.97x = 368,168.15 × 153,639.17 - Step 4: Simplify right side
266,779.97x = 56,565,048,986.44 - Step 5: Solve for x
x = 56,565,048,986.44/266,779.97 - Step 6: Final answer
x = 212,028.85
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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.