Finding the Fourth Proportional to 315,457.23, 472,792.05 and 157,730.79
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Solution
The fourth proportional to 315,457.23, 472,792.05 and 157,730.79 is: 236,399.28
Step by Step Solution
- Step 1: Write the proportion equation
315,457.23 : 472,792.05 = 157,730.79 : x - Step 2: Convert to fraction form
315,457.23/472,792.05 = 157,730.79/x - Step 3: Cross multiply
315,457.23x = 472,792.05 × 157,730.79 - Step 4: Simplify right side
315,457.23x = 74,573,863,552.22 - Step 5: Solve for x
x = 74,573,863,552.22/315,457.23 - Step 6: Final answer
x = 236,399.28
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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.