Finding the Fourth Proportional to 163,813.80, 245,720.70 and 53,005.80
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Solution
The fourth proportional to 163,813.80, 245,720.70 and 53,005.80 is: 79,508.70
Step by Step Solution
- Step 1: Write the proportion equation
163,813.80 : 245,720.70 = 53,005.80 : x - Step 2: Convert to fraction form
163,813.80/245,720.70 = 53,005.80/x - Step 3: Cross multiply
163,813.80x = 245,720.70 × 53,005.80 - Step 4: Simplify right side
163,813.80x = 13,024,622,280.06 - Step 5: Solve for x
x = 13,024,622,280.06/163,813.80 - Step 6: Final answer
x = 79,508.70
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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.