Finding the Fourth Proportional to 432,429.30, 648,705.95 and 132,934.99
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Solution
The fourth proportional to 432,429.30, 648,705.95 and 132,934.99 is: 199,421.54
Step by Step Solution
- Step 1: Write the proportion equation
432,429.30 : 648,705.95 = 132,934.99 : x - Step 2: Convert to fraction form
432,429.30/648,705.95 = 132,934.99/x - Step 3: Cross multiply
432,429.30x = 648,705.95 × 132,934.99 - Step 4: Simplify right side
432,429.30x = 86,235,718,976.19 - Step 5: Solve for x
x = 86,235,718,976.19/432,429.30 - Step 6: Final answer
x = 199,421.54
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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.