Finding the Fourth Proportional to 355,298.38, 489,972.90 and 232,607.68
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Solution
The fourth proportional to 355,298.38, 489,972.90 and 232,607.68 is: 320,776.75
Step by Step Solution
- Step 1: Write the proportion equation
355,298.38 : 489,972.90 = 232,607.68 : x - Step 2: Convert to fraction form
355,298.38/489,972.90 = 232,607.68/x - Step 3: Cross multiply
355,298.38x = 489,972.90 × 232,607.68 - Step 4: Simplify right side
355,298.38x = 113,971,459,531.87 - Step 5: Solve for x
x = 113,971,459,531.87/355,298.38 - Step 6: Final answer
x = 320,776.75
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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.