Finding the Fourth Proportional to 316,297.47, 474,470.52 and 91,660.98
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Solution
The fourth proportional to 316,297.47, 474,470.52 and 91,660.98 is: 137,498.52
Step by Step Solution
- Step 1: Write the proportion equation
316,297.47 : 474,470.52 = 91,660.98 : x - Step 2: Convert to fraction form
316,297.47/474,470.52 = 91,660.98/x - Step 3: Cross multiply
316,297.47x = 474,470.52 × 91,660.98 - Step 4: Simplify right side
316,297.47x = 43,490,432,844.31 - Step 5: Solve for x
x = 43,490,432,844.31/316,297.47 - Step 6: Final answer
x = 137,498.52
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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.