Finding the Fourth Proportional to 420,565.65, 580,373.11 and 239,273.68
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Solution
The fourth proportional to 420,565.65, 580,373.11 and 239,273.68 is: 330,193.42
Step by Step Solution
- Step 1: Write the proportion equation
420,565.65 : 580,373.11 = 239,273.68 : x - Step 2: Convert to fraction form
420,565.65/580,373.11 = 239,273.68/x - Step 3: Cross multiply
420,565.65x = 580,373.11 × 239,273.68 - Step 4: Simplify right side
420,565.65x = 138,868,009,802.75 - Step 5: Solve for x
x = 138,868,009,802.75/420,565.65 - Step 6: Final answer
x = 330,193.42
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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.