Finding the Fourth Proportional to 425,916.38, 638,687.45 and 159,489.99
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Solution
The fourth proportional to 425,916.38, 638,687.45 and 159,489.99 is: 239,164.92
Step by Step Solution
- Step 1: Write the proportion equation
425,916.38 : 638,687.45 = 159,489.99 : x - Step 2: Convert to fraction form
425,916.38/638,687.45 = 159,489.99/x - Step 3: Cross multiply
425,916.38x = 638,687.45 × 159,489.99 - Step 4: Simplify right side
425,916.38x = 101,864,254,216.18 - Step 5: Solve for x
x = 101,864,254,216.18/425,916.38 - Step 6: Final answer
x = 239,164.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.