Finding the Fourth Proportional to 338,965.27, 508,248.56 and 128,617.99
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Solution
The fourth proportional to 338,965.27, 508,248.56 and 128,617.99 is: 192,851.34
Step by Step Solution
- Step 1: Write the proportion equation
338,965.27 : 508,248.56 = 128,617.99 : x - Step 2: Convert to fraction form
338,965.27/508,248.56 = 128,617.99/x - Step 3: Cross multiply
338,965.27x = 508,248.56 × 128,617.99 - Step 4: Simplify right side
338,965.27x = 65,369,907,564.50 - Step 5: Solve for x
x = 65,369,907,564.50/338,965.27 - Step 6: Final answer
x = 192,851.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.