Finding the Fourth Proportional to 286,812.13, 395,801.07 and 159,484.99
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Solution
The fourth proportional to 286,812.13, 395,801.07 and 159,484.99 is: 220,089.47
Step by Step Solution
- Step 1: Write the proportion equation
286,812.13 : 395,801.07 = 159,484.99 : x - Step 2: Convert to fraction form
286,812.13/395,801.07 = 159,484.99/x - Step 3: Cross multiply
286,812.13x = 395,801.07 × 159,484.99 - Step 4: Simplify right side
286,812.13x = 63,124,329,690.94 - Step 5: Solve for x
x = 63,124,329,690.94/286,812.13 - Step 6: Final answer
x = 220,089.47
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1.5x scale
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.