Finding the Fourth Proportional to 409,427.64, 565,051.70 and 228,169.08
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Solution
The fourth proportional to 409,427.64, 565,051.70 and 228,169.08 is: 314,896.49
Step by Step Solution
- Step 1: Write the proportion equation
409,427.64 : 565,051.70 = 228,169.08 : x - Step 2: Convert to fraction form
409,427.64/565,051.70 = 228,169.08/x - Step 3: Cross multiply
409,427.64x = 565,051.70 × 228,169.08 - Step 4: Simplify right side
409,427.64x = 128,927,326,541.44 - Step 5: Solve for x
x = 128,927,326,541.44/409,427.64 - Step 6: Final answer
x = 314,896.49
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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.