Finding the Fourth Proportional to 238,144.06, 328,643.05 and 130,724.09
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Solution
The fourth proportional to 238,144.06, 328,643.05 and 130,724.09 is: 180,401.58
Step by Step Solution
- Step 1: Write the proportion equation
238,144.06 : 328,643.05 = 130,724.09 : x - Step 2: Convert to fraction form
238,144.06/328,643.05 = 130,724.09/x - Step 3: Cross multiply
238,144.06x = 328,643.05 × 130,724.09 - Step 4: Simplify right side
238,144.06x = 42,961,563,646.07 - Step 5: Solve for x
x = 42,961,563,646.07/238,144.06 - Step 6: Final answer
x = 180,401.58
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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.