Finding the Fourth Proportional to 318,865.30, 478,355.55 and 160,695.70
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Solution
The fourth proportional to 318,865.30, 478,355.55 and 160,695.70 is: 241,072.58
Step by Step Solution
- Step 1: Write the proportion equation
318,865.30 : 478,355.55 = 160,695.70 : x - Step 2: Convert to fraction form
318,865.30/478,355.55 = 160,695.70/x - Step 3: Cross multiply
318,865.30x = 478,355.55 × 160,695.70 - Step 4: Simplify right side
318,865.30x = 76,869,679,956.14 - Step 5: Solve for x
x = 76,869,679,956.14/318,865.30 - Step 6: Final answer
x = 241,072.58
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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.