Finding the Fourth Proportional to 468,048.13, 645,905.68 and 253,187.53
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Solution
The fourth proportional to 468,048.13, 645,905.68 and 253,187.53 is: 349,398.39
Step by Step Solution
- Step 1: Write the proportion equation
468,048.13 : 645,905.68 = 253,187.53 : x - Step 2: Convert to fraction form
468,048.13/645,905.68 = 253,187.53/x - Step 3: Cross multiply
468,048.13x = 645,905.68 × 253,187.53 - Step 4: Simplify right side
468,048.13x = 163,535,263,732.17 - Step 5: Solve for x
x = 163,535,263,732.17/468,048.13 - Step 6: Final answer
x = 349,398.39
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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.