Finding the Fourth Proportional to 238,386.74, 328,916.99 and 135,021.83
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Solution
The fourth proportional to 238,386.74, 328,916.99 and 135,021.83 is: 186,298.00
Step by Step Solution
- Step 1: Write the proportion equation
238,386.74 : 328,916.99 = 135,021.83 : x - Step 2: Convert to fraction form
238,386.74/328,916.99 = 135,021.83/x - Step 3: Cross multiply
238,386.74x = 328,916.99 × 135,021.83 - Step 4: Simplify right side
238,386.74x = 44,410,973,232.78 - Step 5: Solve for x
x = 44,410,973,232.78/238,386.74 - Step 6: Final answer
x = 186,298.00
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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.