Finding the Fourth Proportional to 408,029.98, 563,148.18 and 339,938.98
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Solution
The fourth proportional to 408,029.98, 563,148.18 and 339,938.98 is: 469,171.45
Step by Step Solution
- Step 1: Write the proportion equation
408,029.98 : 563,148.18 = 339,938.98 : x - Step 2: Convert to fraction form
408,029.98/563,148.18 = 339,938.98/x - Step 3: Cross multiply
408,029.98x = 563,148.18 × 339,938.98 - Step 4: Simplify right side
408,029.98x = 191,436,017,898.06 - Step 5: Solve for x
x = 191,436,017,898.06/408,029.98 - Step 6: Final answer
x = 469,171.45
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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.