Finding the Fourth Proportional to 163,541.80, 245,312.70 and 142,805.80
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Solution
The fourth proportional to 163,541.80, 245,312.70 and 142,805.80 is: 214,208.70
Step by Step Solution
- Step 1: Write the proportion equation
163,541.80 : 245,312.70 = 142,805.80 : x - Step 2: Convert to fraction form
163,541.80/245,312.70 = 142,805.80/x - Step 3: Cross multiply
163,541.80x = 245,312.70 × 142,805.80 - Step 4: Simplify right side
163,541.80x = 35,032,076,373.66 - Step 5: Solve for x
x = 35,032,076,373.66/163,541.80 - Step 6: Final answer
x = 214,208.70
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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.