Finding the Fourth Proportional to 197,681.04, 272,831.76 and 121,242.42
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Solution
The fourth proportional to 197,681.04, 272,831.76 and 121,242.42 is: 167,334.12
Step by Step Solution
- Step 1: Write the proportion equation
197,681.04 : 272,831.76 = 121,242.42 : x - Step 2: Convert to fraction form
197,681.04/272,831.76 = 121,242.42/x - Step 3: Cross multiply
197,681.04x = 272,831.76 × 121,242.42 - Step 4: Simplify right side
197,681.04x = 33,078,782,835.26 - Step 5: Solve for x
x = 33,078,782,835.26/197,681.04 - Step 6: Final answer
x = 167,334.12
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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.