Finding the Fourth Proportional to 432,721.24, 648,943.35 and 144,470.99
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Solution
The fourth proportional to 432,721.24, 648,943.35 and 144,470.99 is: 216,660.24
Step by Step Solution
- Step 1: Write the proportion equation
432,721.24 : 648,943.35 = 144,470.99 : x - Step 2: Convert to fraction form
432,721.24/648,943.35 = 144,470.99/x - Step 3: Cross multiply
432,721.24x = 648,943.35 × 144,470.99 - Step 4: Simplify right side
432,721.24x = 93,753,489,309.01 - Step 5: Solve for x
x = 93,753,489,309.01/432,721.24 - Step 6: Final answer
x = 216,660.24
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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.