Finding the Fourth Proportional to 307,415.70, 461,188.35 and 129,831.30
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Solution
The fourth proportional to 307,415.70, 461,188.35 and 129,831.30 is: 194,774.32
Step by Step Solution
- Step 1: Write the proportion equation
307,415.70 : 461,188.35 = 129,831.30 : x - Step 2: Convert to fraction form
307,415.70/461,188.35 = 129,831.30/x - Step 3: Cross multiply
307,415.70x = 461,188.35 × 129,831.30 - Step 4: Simplify right side
307,415.70x = 59,876,683,025.36 - Step 5: Solve for x
x = 59,876,683,025.36/307,415.70 - Step 6: Final answer
x = 194,774.32
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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.