Finding the Fourth Proportional to 530.61, 795.89 and 315.56
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Solution
The fourth proportional to 530.61, 795.89 and 315.56 is: 473.31
Step by Step Solution
- Step 1: Write the proportion equation
530.61 : 795.89 = 315.56 : x - Step 2: Convert to fraction form
530.61/795.89 = 315.56/x - Step 3: Cross multiply
530.61x = 795.89 × 315.56 - Step 4: Simplify right side
530.61x = 251,145.49 - Step 5: Solve for x
x = 251,145.49/530.61 - Step 6: Final answer
x = 473.31
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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.