Finding the Fourth Proportional to 486,643.18, 729,966.51 and 149,681.57
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Solution
The fourth proportional to 486,643.18, 729,966.51 and 149,681.57 is: 224,522.89
Step by Step Solution
- Step 1: Write the proportion equation
486,643.18 : 729,966.51 = 149,681.57 : x - Step 2: Convert to fraction form
486,643.18/729,966.51 = 149,681.57/x - Step 3: Cross multiply
486,643.18x = 729,966.51 × 149,681.57 - Step 4: Simplify right side
486,643.18x = 109,262,533,264.22 - Step 5: Solve for x
x = 109,262,533,264.22/486,643.18 - Step 6: Final answer
x = 224,522.89
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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.