Finding the Fourth Proportional to 272,878.80, 409,318.20 and 249,259.20
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Solution
The fourth proportional to 272,878.80, 409,318.20 and 249,259.20 is: 373,888.80
Step by Step Solution
- Step 1: Write the proportion equation
272,878.80 : 409,318.20 = 249,259.20 : x - Step 2: Convert to fraction form
272,878.80/409,318.20 = 249,259.20/x - Step 3: Cross multiply
272,878.80x = 409,318.20 × 249,259.20 - Step 4: Simplify right side
272,878.80x = 102,026,327,077.44 - Step 5: Solve for x
x = 102,026,327,077.44/272,878.80 - Step 6: Final answer
x = 373,888.80
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1.5x scale
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.