Finding the Fourth Proportional to 453,669.30, 680,503.95 and 138,125.70
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Solution
The fourth proportional to 453,669.30, 680,503.95 and 138,125.70 is: 207,188.55
Step by Step Solution
- Step 1: Write the proportion equation
453,669.30 : 680,503.95 = 138,125.70 : x - Step 2: Convert to fraction form
453,669.30/680,503.95 = 138,125.70/x - Step 3: Cross multiply
453,669.30x = 680,503.95 × 138,125.70 - Step 4: Simplify right side
453,669.30x = 93,995,084,446.52 - Step 5: Solve for x
x = 93,995,084,446.52/453,669.30 - Step 6: Final answer
x = 207,188.55
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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.