Finding the Fourth Proportional to 147,497.42, 221,078.84 and 129,693.71
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Solution
The fourth proportional to 147,497.42, 221,078.84 and 129,693.71 is: 194,393.46
Step by Step Solution
- Step 1: Write the proportion equation
147,497.42 : 221,078.84 = 129,693.71 : x - Step 2: Convert to fraction form
147,497.42/221,078.84 = 129,693.71/x - Step 3: Cross multiply
147,497.42x = 221,078.84 × 129,693.71 - Step 4: Simplify right side
147,497.42x = 28,672,533,208.23 - Step 5: Solve for x
x = 28,672,533,208.23/147,497.42 - Step 6: Final answer
x = 194,393.46
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1.5x scale
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.