Finding the Fourth Proportional to 313,646.64, 432,737.01 and 177,658.98
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Solution
The fourth proportional to 313,646.64, 432,737.01 and 177,658.98 is: 245,115.38
Step by Step Solution
- Step 1: Write the proportion equation
313,646.64 : 432,737.01 = 177,658.98 : x - Step 2: Convert to fraction form
313,646.64/432,737.01 = 177,658.98/x - Step 3: Cross multiply
313,646.64x = 432,737.01 × 177,658.98 - Step 4: Simplify right side
313,646.64x = 76,879,615,804.85 - Step 5: Solve for x
x = 76,879,615,804.85/313,646.64 - Step 6: Final answer
x = 245,115.38
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1.5x scale
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.