Finding the Fourth Proportional to 399,725.08, 551,555.13 and 236,358.88
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Solution
The fourth proportional to 399,725.08, 551,555.13 and 236,358.88 is: 326,136.54
Step by Step Solution
- Step 1: Write the proportion equation
399,725.08 : 551,555.13 = 236,358.88 : x - Step 2: Convert to fraction form
399,725.08/551,555.13 = 236,358.88/x - Step 3: Cross multiply
399,725.08x = 551,555.13 × 236,358.88 - Step 4: Simplify right side
399,725.08x = 130,364,952,785.05 - Step 5: Solve for x
x = 130,364,952,785.05/399,725.08 - Step 6: Final answer
x = 326,136.54
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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.