Finding the Fourth Proportional to 286,554.90, 395,451.95 and 157,494.63
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Solution
The fourth proportional to 286,554.90, 395,451.95 and 157,494.63 is: 217,345.99
Step by Step Solution
- Step 1: Write the proportion equation
286,554.90 : 395,451.95 = 157,494.63 : x - Step 2: Convert to fraction form
286,554.90/395,451.95 = 157,494.63/x - Step 3: Cross multiply
286,554.90x = 395,451.95 × 157,494.63 - Step 4: Simplify right side
286,554.90x = 62,281,557,760.56 - Step 5: Solve for x
x = 62,281,557,760.56/286,554.90 - Step 6: Final answer
x = 217,345.99
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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.