Finding the Fourth Proportional to 473.36, 652.68 and 438.80
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Solution
The fourth proportional to 473.36, 652.68 and 438.80 is: 605.03
Step by Step Solution
- Step 1: Write the proportion equation
473.36 : 652.68 = 438.80 : x - Step 2: Convert to fraction form
473.36/652.68 = 438.80/x - Step 3: Cross multiply
473.36x = 652.68 × 438.80 - Step 4: Simplify right side
473.36x = 286,395.98 - Step 5: Solve for x
x = 286,395.98/473.36 - Step 6: Final answer
x = 605.03
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.