Finding the Fourth Proportional to 430,023.70, 644,805.15 and 180,423.70
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Solution
The fourth proportional to 430,023.70, 644,805.15 and 180,423.70 is: 270,538.88
Step by Step Solution
- Step 1: Write the proportion equation
430,023.70 : 644,805.15 = 180,423.70 : x - Step 2: Convert to fraction form
430,023.70/644,805.15 = 180,423.70/x - Step 3: Cross multiply
430,023.70x = 644,805.15 × 180,423.70 - Step 4: Simplify right side
430,023.70x = 116,338,130,942.06 - Step 5: Solve for x
x = 116,338,130,942.06/430,023.70 - Step 6: Final answer
x = 270,538.88
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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.