Finding the Fourth Proportional to 399,389.13, 551,228.19 and 236,038.96
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Solution
The fourth proportional to 399,389.13, 551,228.19 and 236,038.96 is: 325,775.84
Step by Step Solution
- Step 1: Write the proportion equation
399,389.13 : 551,228.19 = 236,038.96 : x - Step 2: Convert to fraction form
399,389.13/551,228.19 = 236,038.96/x - Step 3: Cross multiply
399,389.13x = 551,228.19 × 236,038.96 - Step 4: Simplify right side
399,389.13x = 130,111,328,494.17 - Step 5: Solve for x
x = 130,111,328,494.17/399,389.13 - Step 6: Final answer
x = 325,775.84
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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.