Finding the Fourth Proportional to 409,562.96, 565,128.36 and 228,235.12
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Solution
The fourth proportional to 409,562.96, 565,128.36 and 228,235.12 is: 314,926.28
Step by Step Solution
- Step 1: Write the proportion equation
409,562.96 : 565,128.36 = 228,235.12 : x - Step 2: Convert to fraction form
409,562.96/565,128.36 = 228,235.12/x - Step 3: Cross multiply
409,562.96x = 565,128.36 × 228,235.12 - Step 4: Simplify right side
409,562.96x = 128,982,139,060.00 - Step 5: Solve for x
x = 128,982,139,060.00/409,562.96 - Step 6: Final answer
x = 314,926.28
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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.