Finding the Fourth Proportional to 492,045.70, 738,068.55 and 159,621.70
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Solution
The fourth proportional to 492,045.70, 738,068.55 and 159,621.70 is: 239,432.55
Step by Step Solution
- Step 1: Write the proportion equation
492,045.70 : 738,068.55 = 159,621.70 : x - Step 2: Convert to fraction form
492,045.70/738,068.55 = 159,621.70/x - Step 3: Cross multiply
492,045.70x = 738,068.55 × 159,621.70 - Step 4: Simplify right side
492,045.70x = 117,811,756,667.54 - Step 5: Solve for x
x = 117,811,756,667.54/492,045.70 - Step 6: Final answer
x = 239,432.55
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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.