Finding the Fourth Proportional to 306,730.60, 423,277.86 and 172,568.68
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Solution
The fourth proportional to 306,730.60, 423,277.86 and 172,568.68 is: 238,138.95
Step by Step Solution
- Step 1: Write the proportion equation
306,730.60 : 423,277.86 = 172,568.68 : x - Step 2: Convert to fraction form
306,730.60/423,277.86 = 172,568.68/x - Step 3: Cross multiply
306,730.60x = 423,277.86 × 172,568.68 - Step 4: Simplify right side
306,730.60x = 73,044,501,573.42 - Step 5: Solve for x
x = 73,044,501,573.42/306,730.60 - Step 6: Final answer
x = 238,138.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.