Finding the Fourth Proportional to 320,306.34, 480,459.60 and 83,646.99
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Solution
The fourth proportional to 320,306.34, 480,459.60 and 83,646.99 is: 125,470.51
Step by Step Solution
- Step 1: Write the proportion equation
320,306.34 : 480,459.60 = 83,646.99 : x - Step 2: Convert to fraction form
320,306.34/480,459.60 = 83,646.99/x - Step 3: Cross multiply
320,306.34x = 480,459.60 × 83,646.99 - Step 4: Simplify right side
320,306.34x = 40,188,999,356.60 - Step 5: Solve for x
x = 40,188,999,356.60/320,306.34 - Step 6: Final answer
x = 125,470.51
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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.