Finding the Fourth Proportional to 318,633.92, 478,283.01 and 141,265.49
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Solution
The fourth proportional to 318,633.92, 478,283.01 and 141,265.49 is: 212,045.48
Step by Step Solution
- Step 1: Write the proportion equation
318,633.92 : 478,283.01 = 141,265.49 : x - Step 2: Convert to fraction form
318,633.92/478,283.01 = 141,265.49/x - Step 3: Cross multiply
318,633.92x = 478,283.01 × 141,265.49 - Step 4: Simplify right side
318,633.92x = 67,564,881,374.91 - Step 5: Solve for x
x = 67,564,881,374.91/318,633.92 - Step 6: Final answer
x = 212,045.48
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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.