Finding the Fourth Proportional to 386,176.71, 579,263.91 and 97,987.79
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Solution
The fourth proportional to 386,176.71, 579,263.91 and 97,987.79 is: 146,981.39
Step by Step Solution
- Step 1: Write the proportion equation
386,176.71 : 579,263.91 = 97,987.79 : x - Step 2: Convert to fraction form
386,176.71/579,263.91 = 97,987.79/x - Step 3: Cross multiply
386,176.71x = 579,263.91 × 97,987.79 - Step 4: Simplify right side
386,176.71x = 56,760,790,367.66 - Step 5: Solve for x
x = 56,760,790,367.66/386,176.71 - Step 6: Final answer
x = 146,981.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.