Finding the Fourth Proportional to 286,653.18, 429,832.32 and 128,746.14
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Solution
The fourth proportional to 286,653.18, 429,832.32 and 128,746.14 is: 193,052.98
Step by Step Solution
- Step 1: Write the proportion equation
286,653.18 : 429,832.32 = 128,746.14 : x - Step 2: Convert to fraction form
286,653.18/429,832.32 = 128,746.14/x - Step 3: Cross multiply
286,653.18x = 429,832.32 × 128,746.14 - Step 4: Simplify right side
286,653.18x = 55,339,252,047.24 - Step 5: Solve for x
x = 55,339,252,047.24/286,653.18 - Step 6: Final answer
x = 193,052.98
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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.