Finding the Fourth Proportional to 421,038.80, 631,600.71 and 136,717.46
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Solution
The fourth proportional to 421,038.80, 631,600.71 and 136,717.46 is: 205,089.99
Step by Step Solution
- Step 1: Write the proportion equation
421,038.80 : 631,600.71 = 136,717.46 : x - Step 2: Convert to fraction form
421,038.80/631,600.71 = 136,717.46/x - Step 3: Cross multiply
421,038.80x = 631,600.71 × 136,717.46 - Step 4: Simplify right side
421,038.80x = 86,350,840,963.81 - Step 5: Solve for x
x = 86,350,840,963.81/421,038.80 - Step 6: Final answer
x = 205,089.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.