Finding the Fourth Proportional to 309,798.81, 464,746.86 and 132,306.75
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Solution
The fourth proportional to 309,798.81, 464,746.86 and 132,306.75 is: 198,480.90
Step by Step Solution
- Step 1: Write the proportion equation
309,798.81 : 464,746.86 = 132,306.75 : x - Step 2: Convert to fraction form
309,798.81/464,746.86 = 132,306.75/x - Step 3: Cross multiply
309,798.81x = 464,746.86 × 132,306.75 - Step 4: Simplify right side
309,798.81x = 61,489,146,619.31 - Step 5: Solve for x
x = 61,489,146,619.31/309,798.81 - Step 6: Final answer
x = 198,480.90
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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.