Finding the Fourth Proportional to 403,389.80, 605,084.70 and 193,437.80
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Solution
The fourth proportional to 403,389.80, 605,084.70 and 193,437.80 is: 290,156.70
Step by Step Solution
- Step 1: Write the proportion equation
403,389.80 : 605,084.70 = 193,437.80 : x - Step 2: Convert to fraction form
403,389.80/605,084.70 = 193,437.80/x - Step 3: Cross multiply
403,389.80x = 605,084.70 × 193,437.80 - Step 4: Simplify right side
403,389.80x = 117,046,253,181.66 - Step 5: Solve for x
x = 117,046,253,181.66/403,389.80 - Step 6: Final answer
x = 290,156.70
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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.