Finding the Fourth Proportional to 458,809.80, 688,214.70 and 248,857.80
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Solution
The fourth proportional to 458,809.80, 688,214.70 and 248,857.80 is: 373,286.70
Step by Step Solution
- Step 1: Write the proportion equation
458,809.80 : 688,214.70 = 248,857.80 : x - Step 2: Convert to fraction form
458,809.80/688,214.70 = 248,857.80/x - Step 3: Cross multiply
458,809.80x = 688,214.70 × 248,857.80 - Step 4: Simplify right side
458,809.80x = 171,267,596,169.66 - Step 5: Solve for x
x = 171,267,596,169.66/458,809.80 - Step 6: Final answer
x = 373,286.70
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1.5x scale
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.