Finding the Fourth Proportional to 238,146.06, 328,645.81 and 130,726.09
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Solution
The fourth proportional to 238,146.06, 328,645.81 and 130,726.09 is: 180,404.34
Step by Step Solution
- Step 1: Write the proportion equation
238,146.06 : 328,645.81 = 130,726.09 : x - Step 2: Convert to fraction form
238,146.06/328,645.81 = 130,726.09/x - Step 3: Cross multiply
238,146.06x = 328,645.81 × 130,726.09 - Step 4: Simplify right side
238,146.06x = 42,962,581,736.18 - Step 5: Solve for x
x = 42,962,581,736.18/238,146.06 - Step 6: Final answer
x = 180,404.34
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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.