Finding the Fourth Proportional to 315,357.24, 472,703.65 and 157,253.54
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Solution
The fourth proportional to 315,357.24, 472,703.65 and 157,253.54 is: 235,714.65
Step by Step Solution
- Step 1: Write the proportion equation
315,357.24 : 472,703.65 = 157,253.54 : x - Step 2: Convert to fraction form
315,357.24/472,703.65 = 157,253.54/x - Step 3: Cross multiply
315,357.24x = 472,703.65 × 157,253.54 - Step 4: Simplify right side
315,357.24x = 74,334,321,570.99 - Step 5: Solve for x
x = 74,334,321,570.99/315,357.24 - Step 6: Final answer
x = 235,714.65
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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.