Finding the Fourth Proportional to 472,763.25, 709,150.95 and 157,220.19
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Solution
The fourth proportional to 472,763.25, 709,150.95 and 157,220.19 is: 235,832.31
Step by Step Solution
- Step 1: Write the proportion equation
472,763.25 : 709,150.95 = 157,220.19 : x - Step 2: Convert to fraction form
472,763.25/709,150.95 = 157,220.19/x - Step 3: Cross multiply
472,763.25x = 709,150.95 × 157,220.19 - Step 4: Simplify right side
472,763.25x = 111,492,847,097.68 - Step 5: Solve for x
x = 111,492,847,097.68/472,763.25 - Step 6: Final answer
x = 235,832.31
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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.