Finding the Fourth Proportional to 426,860.71, 640,316.12 and 160,623.53
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Solution
The fourth proportional to 426,860.71, 640,316.12 and 160,623.53 is: 240,944.72
Step by Step Solution
- Step 1: Write the proportion equation
426,860.71 : 640,316.12 = 160,623.53 : x - Step 2: Convert to fraction form
426,860.71/640,316.12 = 160,623.53/x - Step 3: Cross multiply
426,860.71x = 640,316.12 × 160,623.53 - Step 4: Simplify right side
426,860.71x = 102,849,834,810.30 - Step 5: Solve for x
x = 102,849,834,810.30/426,860.71 - Step 6: Final answer
x = 240,944.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.