Finding the Fourth Proportional to 319,447.80, 479,171.70 and 97,831.80
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Solution
The fourth proportional to 319,447.80, 479,171.70 and 97,831.80 is: 146,747.70
Step by Step Solution
- Step 1: Write the proportion equation
319,447.80 : 479,171.70 = 97,831.80 : x - Step 2: Convert to fraction form
319,447.80/479,171.70 = 97,831.80/x - Step 3: Cross multiply
319,447.80x = 479,171.70 × 97,831.80 - Step 4: Simplify right side
319,447.80x = 46,878,229,920.06 - Step 5: Solve for x
x = 46,878,229,920.06/319,447.80 - Step 6: Final answer
x = 146,747.70
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1.5x scale
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.