Finding the Fourth Proportional to 286,340.64, 395,154.86 and 157,291.08
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Solution
The fourth proportional to 286,340.64, 395,154.86 and 157,291.08 is: 217,064.31
Step by Step Solution
- Step 1: Write the proportion equation
286,340.64 : 395,154.86 = 157,291.08 : x - Step 2: Convert to fraction form
286,340.64/395,154.86 = 157,291.08/x - Step 3: Cross multiply
286,340.64x = 395,154.86 × 157,291.08 - Step 4: Simplify right side
286,340.64x = 62,154,333,910.19 - Step 5: Solve for x
x = 62,154,333,910.19/286,340.64 - Step 6: Final answer
x = 217,064.31
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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.