Finding the Fourth Proportional to 438,526.12, 657,990.06 and 238,546.84
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Solution
The fourth proportional to 438,526.12, 657,990.06 and 238,546.84 is: 357,929.53
Step by Step Solution
- Step 1: Write the proportion equation
438,526.12 : 657,990.06 = 238,546.84 : x - Step 2: Convert to fraction form
438,526.12/657,990.06 = 238,546.84/x - Step 3: Cross multiply
438,526.12x = 657,990.06 × 238,546.84 - Step 4: Simplify right side
438,526.12x = 156,961,449,564.41 - Step 5: Solve for x
x = 156,961,449,564.41/438,526.12 - Step 6: Final answer
x = 357,929.53
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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.