Finding the Fourth Proportional to 176,140.20, 243,246.03 and 121,831.44
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Solution
The fourth proportional to 176,140.20, 243,246.03 and 121,831.44 is: 168,246.74
Step by Step Solution
- Step 1: Write the proportion equation
176,140.20 : 243,246.03 = 121,831.44 : x - Step 2: Convert to fraction form
176,140.20/243,246.03 = 121,831.44/x - Step 3: Cross multiply
176,140.20x = 243,246.03 × 121,831.44 - Step 4: Simplify right side
176,140.20x = 29,635,014,109.18 - Step 5: Solve for x
x = 29,635,014,109.18/176,140.20 - Step 6: Final answer
x = 168,246.74
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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.