Finding the Fourth Proportional to 299,126.74, 448,985.70 and 130,763.28
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Solution
The fourth proportional to 299,126.74, 448,985.70 and 130,763.28 is: 196,274.14
Step by Step Solution
- Step 1: Write the proportion equation
299,126.74 : 448,985.70 = 130,763.28 : x - Step 2: Convert to fraction form
299,126.74/448,985.70 = 130,763.28/x - Step 3: Cross multiply
299,126.74x = 448,985.70 × 130,763.28 - Step 4: Simplify right side
299,126.74x = 58,710,842,805.10 - Step 5: Solve for x
x = 58,710,842,805.10/299,126.74 - Step 6: Final answer
x = 196,274.14
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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.