Finding the Fourth Proportional to 368.93, 508.68 and 305.93
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Solution
The fourth proportional to 368.93, 508.68 and 305.93 is: 421.82
Step by Step Solution
- Step 1: Write the proportion equation
368.93 : 508.68 = 305.93 : x - Step 2: Convert to fraction form
368.93/508.68 = 305.93/x - Step 3: Cross multiply
368.93x = 508.68 × 305.93 - Step 4: Simplify right side
368.93x = 155,620.47 - Step 5: Solve for x
x = 155,620.47/368.93 - Step 6: Final answer
x = 421.82
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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.