Finding the Fourth Proportional to 387,239.36, 580,509.12 and 268,966.40
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Solution
The fourth proportional to 387,239.36, 580,509.12 and 268,966.40 is: 403,206.55
Step by Step Solution
- Step 1: Write the proportion equation
387,239.36 : 580,509.12 = 268,966.40 : x - Step 2: Convert to fraction form
387,239.36/580,509.12 = 268,966.40/x - Step 3: Cross multiply
387,239.36x = 580,509.12 × 268,966.40 - Step 4: Simplify right side
387,239.36x = 156,137,448,173.57 - Step 5: Solve for x
x = 156,137,448,173.57/387,239.36 - Step 6: Final answer
x = 403,206.55
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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.