Finding the Fourth Proportional to 458,813.80, 688,220.70 and 248,861.80
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Solution
The fourth proportional to 458,813.80, 688,220.70 and 248,861.80 is: 373,292.70
Step by Step Solution
- Step 1: Write the proportion equation
458,813.80 : 688,220.70 = 248,861.80 : x - Step 2: Convert to fraction form
458,813.80/688,220.70 = 248,861.80/x - Step 3: Cross multiply
458,813.80x = 688,220.70 × 248,861.80 - Step 4: Simplify right side
458,813.80x = 171,271,842,199.26 - Step 5: Solve for x
x = 171,271,842,199.26/458,813.80 - Step 6: Final answer
x = 373,292.70
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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.