Finding the Fourth Proportional to 420,565.44, 580,356.48 and 239,253.12
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Solution
The fourth proportional to 420,565.44, 580,356.48 and 239,253.12 is: 330,155.75
Step by Step Solution
- Step 1: Write the proportion equation
420,565.44 : 580,356.48 = 239,253.12 : x - Step 2: Convert to fraction form
420,565.44/580,356.48 = 239,253.12/x - Step 3: Cross multiply
420,565.44x = 580,356.48 × 239,253.12 - Step 4: Simplify right side
420,565.44x = 138,852,098,552.22 - Step 5: Solve for x
x = 138,852,098,552.22/420,565.44 - Step 6: Final answer
x = 330,155.75
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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.