Finding the Fourth Proportional to 420,363.56, 580,114.52 and 239,101.58
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Solution
The fourth proportional to 420,363.56, 580,114.52 and 239,101.58 is: 329,967.47
Step by Step Solution
- Step 1: Write the proportion equation
420,363.56 : 580,114.52 = 239,101.58 : x - Step 2: Convert to fraction form
420,363.56/580,114.52 = 239,101.58/x - Step 3: Cross multiply
420,363.56x = 580,114.52 × 239,101.58 - Step 4: Simplify right side
420,363.56x = 138,706,298,312.94 - Step 5: Solve for x
x = 138,706,298,312.94/420,363.56 - Step 6: Final answer
x = 329,967.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.