Finding the Fourth Proportional to 423,531.06, 635,161.87 and 139,156.06
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Solution
The fourth proportional to 423,531.06, 635,161.87 and 139,156.06 is: 208,689.82
Step by Step Solution
- Step 1: Write the proportion equation
423,531.06 : 635,161.87 = 139,156.06 : x - Step 2: Convert to fraction form
423,531.06/635,161.87 = 139,156.06/x - Step 3: Cross multiply
423,531.06x = 635,161.87 × 139,156.06 - Step 4: Simplify right side
423,531.06x = 88,386,622,595.65 - Step 5: Solve for x
x = 88,386,622,595.65/423,531.06 - Step 6: Final answer
x = 208,689.82
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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.