Finding the Fourth Proportional to 389,271.70, 537,195.09 and 210,423.70
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Solution
The fourth proportional to 389,271.70, 537,195.09 and 210,423.70 is: 290,384.78
Step by Step Solution
- Step 1: Write the proportion equation
389,271.70 : 537,195.09 = 210,423.70 : x - Step 2: Convert to fraction form
389,271.70/537,195.09 = 210,423.70/x - Step 3: Cross multiply
389,271.70x = 537,195.09 × 210,423.70 - Step 4: Simplify right side
389,271.70x = 113,038,578,459.63 - Step 5: Solve for x
x = 113,038,578,459.63/389,271.70 - Step 6: Final answer
x = 290,384.78
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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.