Finding the Fourth Proportional to 245,985.80, 368,978.70 and 121,569.80
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Solution
The fourth proportional to 245,985.80, 368,978.70 and 121,569.80 is: 182,354.70
Step by Step Solution
- Step 1: Write the proportion equation
245,985.80 : 368,978.70 = 121,569.80 : x - Step 2: Convert to fraction form
245,985.80/368,978.70 = 121,569.80/x - Step 3: Cross multiply
245,985.80x = 368,978.70 × 121,569.80 - Step 4: Simplify right side
245,985.80x = 44,856,666,763.26 - Step 5: Solve for x
x = 44,856,666,763.26/245,985.80 - Step 6: Final answer
x = 182,354.70
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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.