Finding the Fourth Proportional to 279,885.78, 385,937.14 and 189,084.08
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Solution
The fourth proportional to 279,885.78, 385,937.14 and 189,084.08 is: 260,729.82
Step by Step Solution
- Step 1: Write the proportion equation
279,885.78 : 385,937.14 = 189,084.08 : x - Step 2: Convert to fraction form
279,885.78/385,937.14 = 189,084.08/x - Step 3: Cross multiply
279,885.78x = 385,937.14 × 189,084.08 - Step 4: Simplify right side
279,885.78x = 72,974,569,054.73 - Step 5: Solve for x
x = 72,974,569,054.73/279,885.78 - Step 6: Final answer
x = 260,729.82
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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.