Finding the Fourth Proportional to 369,423.92, 509,774.28 and 208,318.70
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Solution
The fourth proportional to 369,423.92, 509,774.28 and 208,318.70 is: 287,462.48
Step by Step Solution
- Step 1: Write the proportion equation
369,423.92 : 509,774.28 = 208,318.70 : x - Step 2: Convert to fraction form
369,423.92/509,774.28 = 208,318.70/x - Step 3: Cross multiply
369,423.92x = 509,774.28 × 208,318.70 - Step 4: Simplify right side
369,423.92x = 106,195,515,303.04 - Step 5: Solve for x
x = 106,195,515,303.04/369,423.92 - Step 6: Final answer
x = 287,462.48
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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.