Finding the Fourth Proportional to 291,778.07, 402,653.34 and 157,642.07
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Solution
The fourth proportional to 291,778.07, 402,653.34 and 157,642.07 is: 217,545.84
Step by Step Solution
- Step 1: Write the proportion equation
291,778.07 : 402,653.34 = 157,642.07 : x - Step 2: Convert to fraction form
291,778.07/402,653.34 = 157,642.07/x - Step 3: Cross multiply
291,778.07x = 402,653.34 × 157,642.07 - Step 4: Simplify right side
291,778.07x = 63,475,103,996.75 - Step 5: Solve for x
x = 63,475,103,996.75/291,778.07 - Step 6: Final answer
x = 217,545.84
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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.