Finding the Fourth Proportional to 245,477.76, 338,756.08 and 138,047.76
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Solution
The fourth proportional to 245,477.76, 338,756.08 and 138,047.76 is: 190,504.09
Step by Step Solution
- Step 1: Write the proportion equation
245,477.76 : 338,756.08 = 138,047.76 : x - Step 2: Convert to fraction form
245,477.76/338,756.08 = 138,047.76/x - Step 3: Cross multiply
245,477.76x = 338,756.08 × 138,047.76 - Step 4: Simplify right side
245,477.76x = 46,764,518,030.38 - Step 5: Solve for x
x = 46,764,518,030.38/245,477.76 - Step 6: Final answer
x = 190,504.09
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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.