Finding the Fourth Proportional to 628,239.28, 942,368.92 and 154,924.80
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Solution
The fourth proportional to 628,239.28, 942,368.92 and 154,924.80 is: 232,389.67
Step by Step Solution
- Step 1: Write the proportion equation
628,239.28 : 942,368.92 = 154,924.80 : x - Step 2: Convert to fraction form
628,239.28/942,368.92 = 154,924.80/x - Step 3: Cross multiply
628,239.28x = 942,368.92 × 154,924.80 - Step 4: Simplify right side
628,239.28x = 145,996,316,457.22 - Step 5: Solve for x
x = 145,996,316,457.22/628,239.28 - Step 6: Final answer
x = 232,389.67
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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.