Finding the Fourth Proportional to 316,545.06, 436,831.99 and 173,305.07
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Solution
The fourth proportional to 316,545.06, 436,831.99 and 173,305.07 is: 239,160.89
Step by Step Solution
- Step 1: Write the proportion equation
316,545.06 : 436,831.99 = 173,305.07 : x - Step 2: Convert to fraction form
316,545.06/436,831.99 = 173,305.07/x - Step 3: Cross multiply
316,545.06x = 436,831.99 × 173,305.07 - Step 4: Simplify right side
316,545.06x = 75,705,197,625.89 - Step 5: Solve for x
x = 75,705,197,625.89/316,545.06 - Step 6: Final answer
x = 239,160.89
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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.