Finding the Fourth Proportional to 375,432.19, 563,142.31 and 91,125.09
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Solution
The fourth proportional to 375,432.19, 563,142.31 and 91,125.09 is: 136,686.19
Step by Step Solution
- Step 1: Write the proportion equation
375,432.19 : 563,142.31 = 91,125.09 : x - Step 2: Convert to fraction form
375,432.19/563,142.31 = 91,125.09/x - Step 3: Cross multiply
375,432.19x = 563,142.31 × 91,125.09 - Step 4: Simplify right side
375,432.19x = 51,316,393,453.75 - Step 5: Solve for x
x = 51,316,393,453.75/375,432.19 - Step 6: Final answer
x = 136,686.19
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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.