Finding the Fourth Proportional to 286,517.54, 429,627.99 and 128,610.02
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Solution
The fourth proportional to 286,517.54, 429,627.99 and 128,610.02 is: 192,848.45
Step by Step Solution
- Step 1: Write the proportion equation
286,517.54 : 429,627.99 = 128,610.02 : x - Step 2: Convert to fraction form
286,517.54/429,627.99 = 128,610.02/x - Step 3: Cross multiply
286,517.54x = 429,627.99 × 128,610.02 - Step 4: Simplify right side
286,517.54x = 55,254,464,386.46 - Step 5: Solve for x
x = 55,254,464,386.46/286,517.54 - Step 6: Final answer
x = 192,848.45
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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.