Finding the Fourth Proportional to 430,590.28, 645,466.38 and 205,892.68
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Solution
The fourth proportional to 430,590.28, 645,466.38 and 205,892.68 is: 308,638.65
Step by Step Solution
- Step 1: Write the proportion equation
430,590.28 : 645,466.38 = 205,892.68 : x - Step 2: Convert to fraction form
430,590.28/645,466.38 = 205,892.68/x - Step 3: Cross multiply
430,590.28x = 645,466.38 × 205,892.68 - Step 4: Simplify right side
430,590.28x = 132,896,802,828.10 - Step 5: Solve for x
x = 132,896,802,828.10/430,590.28 - Step 6: Final answer
x = 308,638.65
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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.