Finding the Fourth Proportional to 472,828.20, 709,703.10 and 236,437.80
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Solution
The fourth proportional to 472,828.20, 709,703.10 and 236,437.80 is: 354,887.12
Step by Step Solution
- Step 1: Write the proportion equation
472,828.20 : 709,703.10 = 236,437.80 : x - Step 2: Convert to fraction form
472,828.20/709,703.10 = 236,437.80/x - Step 3: Cross multiply
472,828.20x = 709,703.10 × 236,437.80 - Step 4: Simplify right side
472,828.20x = 167,800,639,617.18 - Step 5: Solve for x
x = 167,800,639,617.18/472,828.20 - Step 6: Final answer
x = 354,887.12
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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.