Finding the Fourth Proportional to 555.95, 767.21 and 307.26
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Solution
The fourth proportional to 555.95, 767.21 and 307.26 is: 424.02
Step by Step Solution
- Step 1: Write the proportion equation
555.95 : 767.21 = 307.26 : x - Step 2: Convert to fraction form
555.95/767.21 = 307.26/x - Step 3: Cross multiply
555.95x = 767.21 × 307.26 - Step 4: Simplify right side
555.95x = 235,732.94 - Step 5: Solve for x
x = 235,732.94/555.95 - Step 6: Final answer
x = 424.02
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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.