Finding the Fourth Proportional to 346,721.70, 520,082.55 and 228,623.70
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Solution
The fourth proportional to 346,721.70, 520,082.55 and 228,623.70 is: 342,935.55
Step by Step Solution
- Step 1: Write the proportion equation
346,721.70 : 520,082.55 = 228,623.70 : x - Step 2: Convert to fraction form
346,721.70/520,082.55 = 228,623.70/x - Step 3: Cross multiply
346,721.70x = 520,082.55 × 228,623.70 - Step 4: Simplify right side
346,721.70x = 118,903,196,886.44 - Step 5: Solve for x
x = 118,903,196,886.44/346,721.70 - Step 6: Final answer
x = 342,935.55
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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.