Finding the Fourth Proportional to 236,246.76, 326,019.74 and 128,816.53
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Solution
The fourth proportional to 236,246.76, 326,019.74 and 128,816.53 is: 177,766.38
Step by Step Solution
- Step 1: Write the proportion equation
236,246.76 : 326,019.74 = 128,816.53 : x - Step 2: Convert to fraction form
236,246.76/326,019.74 = 128,816.53/x - Step 3: Cross multiply
236,246.76x = 326,019.74 × 128,816.53 - Step 4: Simplify right side
236,246.76x = 41,996,730,159.17 - Step 5: Solve for x
x = 41,996,730,159.17/236,246.76 - Step 6: Final answer
x = 177,766.38
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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.