Finding the Fourth Proportional to 430,433.10, 645,358.05 and 219,897.90
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Solution
The fourth proportional to 430,433.10, 645,358.05 and 219,897.90 is: 329,697.88
Step by Step Solution
- Step 1: Write the proportion equation
430,433.10 : 645,358.05 = 219,897.90 : x - Step 2: Convert to fraction form
430,433.10/645,358.05 = 219,897.90/x - Step 3: Cross multiply
430,433.10x = 645,358.05 × 219,897.90 - Step 4: Simplify right side
430,433.10x = 141,912,879,943.10 - Step 5: Solve for x
x = 141,912,879,943.10/430,433.10 - Step 6: Final answer
x = 329,697.88
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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.