Finding the Fourth Proportional to 357,715.80, 493,540.16 and 214,423.56
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Solution
The fourth proportional to 357,715.80, 493,540.16 and 214,423.56 is: 295,839.99
Step by Step Solution
- Step 1: Write the proportion equation
357,715.80 : 493,540.16 = 214,423.56 : x - Step 2: Convert to fraction form
357,715.80/493,540.16 = 214,423.56/x - Step 3: Cross multiply
357,715.80x = 493,540.16 × 214,423.56 - Step 4: Simplify right side
357,715.80x = 105,826,637,038.05 - Step 5: Solve for x
x = 105,826,637,038.05/357,715.80 - Step 6: Final answer
x = 295,839.99
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1.5x scale
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.