Finding the Fourth Proportional to 258,058.99, 356,149.32 and 156,140.65
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Solution
The fourth proportional to 258,058.99, 356,149.32 and 156,140.65 is: 215,490.99
Step by Step Solution
- Step 1: Write the proportion equation
258,058.99 : 356,149.32 = 156,140.65 : x - Step 2: Convert to fraction form
258,058.99/356,149.32 = 156,140.65/x - Step 3: Cross multiply
258,058.99x = 356,149.32 × 156,140.65 - Step 4: Simplify right side
258,058.99x = 55,609,385,541.15 - Step 5: Solve for x
x = 55,609,385,541.15/258,058.99 - Step 6: Final answer
x = 215,490.99
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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.