Finding the Fourth Proportional to 457.14, 630.84 and 260.70
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Solution
The fourth proportional to 457.14, 630.84 and 260.70 is: 359.76
Step by Step Solution
- Step 1: Write the proportion equation
457.14 : 630.84 = 260.70 : x - Step 2: Convert to fraction form
457.14/630.84 = 260.70/x - Step 3: Cross multiply
457.14x = 630.84 × 260.70 - Step 4: Simplify right side
457.14x = 164,459.99 - Step 5: Solve for x
x = 164,459.99/457.14 - Step 6: Final answer
x = 359.76
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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.