Finding the Fourth Proportional to 369,073.40, 509,318.96 and 207,980.19
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Solution
The fourth proportional to 369,073.40, 509,318.96 and 207,980.19 is: 287,011.35
Step by Step Solution
- Step 1: Write the proportion equation
369,073.40 : 509,318.96 = 207,980.19 : x - Step 2: Convert to fraction form
369,073.40/509,318.96 = 207,980.19/x - Step 3: Cross multiply
369,073.40x = 509,318.96 × 207,980.19 - Step 4: Simplify right side
369,073.40x = 105,928,253,031.50 - Step 5: Solve for x
x = 105,928,253,031.50/369,073.40 - Step 6: Final answer
x = 287,011.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.