Finding the Fourth Proportional to 515,521.28, 773,036.48 and 211,867.99
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Solution
The fourth proportional to 515,521.28, 773,036.48 and 211,867.99 is: 317,701.11
Step by Step Solution
- Step 1: Write the proportion equation
515,521.28 : 773,036.48 = 211,867.99 : x - Step 2: Convert to fraction form
515,521.28/773,036.48 = 211,867.99/x - Step 3: Cross multiply
515,521.28x = 773,036.48 × 211,867.99 - Step 4: Simplify right side
515,521.28x = 163,781,683,811.35 - Step 5: Solve for x
x = 163,781,683,811.35/515,521.28 - Step 6: Final answer
x = 317,701.11
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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.