Finding the Fourth Proportional to 238,351.29, 328,927.14 and 129,457.74
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Solution
The fourth proportional to 238,351.29, 328,927.14 and 129,457.74 is: 178,652.96
Step by Step Solution
- Step 1: Write the proportion equation
238,351.29 : 328,927.14 = 129,457.74 : x - Step 2: Convert to fraction form
238,351.29/328,927.14 = 129,457.74/x - Step 3: Cross multiply
238,351.29x = 328,927.14 × 129,457.74 - Step 4: Simplify right side
238,351.29x = 42,582,164,169.06 - Step 5: Solve for x
x = 42,582,164,169.06/238,351.29 - Step 6: Final answer
x = 178,652.96
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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.