Finding the Fourth Proportional to 458.69, 632.36 and 384.09
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Solution
The fourth proportional to 458.69, 632.36 and 384.09 is: 529.52
Step by Step Solution
- Step 1: Write the proportion equation
458.69 : 632.36 = 384.09 : x - Step 2: Convert to fraction form
458.69/632.36 = 384.09/x - Step 3: Cross multiply
458.69x = 632.36 × 384.09 - Step 4: Simplify right side
458.69x = 242,881.23 - Step 5: Solve for x
x = 242,881.23/458.69 - Step 6: Final answer
x = 529.52
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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.