Finding the Fourth Proportional to 371,898.84, 513,223.80 and 202,133.40
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Solution
The fourth proportional to 371,898.84, 513,223.80 and 202,133.40 is: 278,945.94
Step by Step Solution
- Step 1: Write the proportion equation
371,898.84 : 513,223.80 = 202,133.40 : x - Step 2: Convert to fraction form
371,898.84/513,223.80 = 202,133.40/x - Step 3: Cross multiply
371,898.84x = 513,223.80 × 202,133.40 - Step 4: Simplify right side
371,898.84x = 103,739,671,654.92 - Step 5: Solve for x
x = 103,739,671,654.92/371,898.84 - Step 6: Final answer
x = 278,945.94
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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.