Finding the Fourth Proportional to 399,586.65, 551,440.40 and 238,535.17
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Solution
The fourth proportional to 399,586.65, 551,440.40 and 238,535.17 is: 329,184.99
Step by Step Solution
- Step 1: Write the proportion equation
399,586.65 : 551,440.40 = 238,535.17 : x - Step 2: Convert to fraction form
399,586.65/551,440.40 = 238,535.17/x - Step 3: Cross multiply
399,586.65x = 551,440.40 × 238,535.17 - Step 4: Simplify right side
399,586.65x = 131,537,926,987.59 - Step 5: Solve for x
x = 131,537,926,987.59/399,586.65 - Step 6: Final answer
x = 329,184.99
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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.