Finding the Fourth Proportional to 225,260.90, 310,894.94 and 128,464.96
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Solution
The fourth proportional to 225,260.90, 310,894.94 and 128,464.96 is: 177,301.55
Step by Step Solution
- Step 1: Write the proportion equation
225,260.90 : 310,894.94 = 128,464.96 : x - Step 2: Convert to fraction form
225,260.90/310,894.94 = 128,464.96/x - Step 3: Cross multiply
225,260.90x = 310,894.94 × 128,464.96 - Step 4: Simplify right side
225,260.90x = 39,939,106,031.30 - Step 5: Solve for x
x = 39,939,106,031.30/225,260.90 - Step 6: Final answer
x = 177,301.55
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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.