Finding the Fourth Proportional to 257,202.48, 354,931.36 and 142,476.48
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Solution
The fourth proportional to 257,202.48, 354,931.36 and 142,476.48 is: 196,613.08
Step by Step Solution
- Step 1: Write the proportion equation
257,202.48 : 354,931.36 = 142,476.48 : x - Step 2: Convert to fraction form
257,202.48/354,931.36 = 142,476.48/x - Step 3: Cross multiply
257,202.48x = 354,931.36 × 142,476.48 - Step 4: Simplify right side
257,202.48x = 50,569,370,814.41 - Step 5: Solve for x
x = 50,569,370,814.41/257,202.48 - Step 6: Final answer
x = 196,613.08
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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.