Finding the Fourth Proportional to 247,129.61, 370,621.74 and 104,973.75
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Solution
The fourth proportional to 247,129.61, 370,621.74 and 104,973.75 is: 157,429.76
Step by Step Solution
- Step 1: Write the proportion equation
247,129.61 : 370,621.74 = 104,973.75 : x - Step 2: Convert to fraction form
247,129.61/370,621.74 = 104,973.75/x - Step 3: Cross multiply
247,129.61x = 370,621.74 × 104,973.75 - Step 4: Simplify right side
247,129.61x = 38,905,554,272.98 - Step 5: Solve for x
x = 38,905,554,272.98/247,129.61 - Step 6: Final answer
x = 157,429.76
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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.