Finding the Fourth Proportional to 314,860.80, 472,291.20 and 115,187.70
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Solution
The fourth proportional to 314,860.80, 472,291.20 and 115,187.70 is: 172,781.55
Step by Step Solution
- Step 1: Write the proportion equation
314,860.80 : 472,291.20 = 115,187.70 : x - Step 2: Convert to fraction form
314,860.80/472,291.20 = 115,187.70/x - Step 3: Cross multiply
314,860.80x = 472,291.20 × 115,187.70 - Step 4: Simplify right side
314,860.80x = 54,402,137,058.24 - Step 5: Solve for x
x = 54,402,137,058.24/314,860.80 - Step 6: Final answer
x = 172,781.55
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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.