Finding the Fourth Proportional to 348,077.12, 480,342.56 and 195,140.21
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Solution
The fourth proportional to 348,077.12, 480,342.56 and 195,140.21 is: 269,291.32
Step by Step Solution
- Step 1: Write the proportion equation
348,077.12 : 480,342.56 = 195,140.21 : x - Step 2: Convert to fraction form
348,077.12/480,342.56 = 195,140.21/x - Step 3: Cross multiply
348,077.12x = 480,342.56 × 195,140.21 - Step 4: Simplify right side
348,077.12x = 93,734,144,652.92 - Step 5: Solve for x
x = 93,734,144,652.92/348,077.12 - Step 6: Final answer
x = 269,291.32
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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.