Finding the Fourth Proportional to 314,135.97, 433,270.06 and 217,501.55
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Solution
The fourth proportional to 314,135.97, 433,270.06 and 217,501.55 is: 299,987.65
Step by Step Solution
- Step 1: Write the proportion equation
314,135.97 : 433,270.06 = 217,501.55 : x - Step 2: Convert to fraction form
314,135.97/433,270.06 = 217,501.55/x - Step 3: Cross multiply
314,135.97x = 433,270.06 × 217,501.55 - Step 4: Simplify right side
314,135.97x = 94,236,910,973.65 - Step 5: Solve for x
x = 94,236,910,973.65/314,135.97 - Step 6: Final answer
x = 299,987.65
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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.