Finding the Fourth Proportional to 437,521.08, 656,318.64 and 121,978.26
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Solution
The fourth proportional to 437,521.08, 656,318.64 and 121,978.26 is: 182,977.71
Step by Step Solution
- Step 1: Write the proportion equation
437,521.08 : 656,318.64 = 121,978.26 : x - Step 2: Convert to fraction form
437,521.08/656,318.64 = 121,978.26/x - Step 3: Cross multiply
437,521.08x = 656,318.64 × 121,978.26 - Step 4: Simplify right side
437,521.08x = 80,056,605,712.77 - Step 5: Solve for x
x = 80,056,605,712.77/437,521.08 - Step 6: Final answer
x = 182,977.71
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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.