Finding the Fourth Proportional to 235,681.76, 325,247.74 and 128,258.76
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Solution
The fourth proportional to 235,681.76, 325,247.74 and 128,258.76 is: 177,000.85
Step by Step Solution
- Step 1: Write the proportion equation
235,681.76 : 325,247.74 = 128,258.76 : x - Step 2: Convert to fraction form
235,681.76/325,247.74 = 128,258.76/x - Step 3: Cross multiply
235,681.76x = 325,247.74 × 128,258.76 - Step 4: Simplify right side
235,681.76x = 41,715,871,825.20 - Step 5: Solve for x
x = 41,715,871,825.20/235,681.76 - Step 6: Final answer
x = 177,000.85
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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.