Finding the Fourth Proportional to 245,058.55, 338,141.08 and 153,166.99
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Solution
The fourth proportional to 245,058.55, 338,141.08 and 153,166.99 is: 211,345.62
Step by Step Solution
- Step 1: Write the proportion equation
245,058.55 : 338,141.08 = 153,166.99 : x - Step 2: Convert to fraction form
245,058.55/338,141.08 = 153,166.99/x - Step 3: Cross multiply
245,058.55x = 338,141.08 × 153,166.99 - Step 4: Simplify right side
245,058.55x = 51,792,051,418.95 - Step 5: Solve for x
x = 51,792,051,418.95/245,058.55 - Step 6: Final answer
x = 211,345.62
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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.